forked from TrueCloudLab/distribution
Split layer and upload from repository
Layer upload moved to its own file with its own unit tests Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
This commit is contained in:
Derek McGowan
parent
03e0873125
commit
07cee840a4
5 changed files with 569 additions and 328 deletions
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@ -1,7 +1,6 @@
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package client
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import (
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"bytes"
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"encoding/json"
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"fmt"
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"io/ioutil"
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@ -104,9 +103,8 @@ func parseHTTPErrorResponse(response *http.Response) error {
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if err != nil {
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return err
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}
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decoder := json.NewDecoder(bytes.NewReader(body))
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err = decoder.Decode(&errors)
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if err != nil {
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if err := json.Unmarshal(body, &errors); err != nil {
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return &UnexpectedHTTPResponseError{
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ParseErr: err,
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Response: body,
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178
docs/client/layer.go
Normal file
178
docs/client/layer.go
Normal file
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@ -0,0 +1,178 @@
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package client
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import (
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"bufio"
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"bytes"
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"fmt"
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"io"
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"io/ioutil"
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"net/http"
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"os"
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"time"
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"github.com/docker/distribution/context"
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"github.com/docker/distribution/digest"
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)
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type httpLayer struct {
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*layers
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size int64
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digest digest.Digest
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createdAt time.Time
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rc io.ReadCloser // remote read closer
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brd *bufio.Reader // internal buffered io
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offset int64
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err error
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}
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func (hl *httpLayer) CreatedAt() time.Time {
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return hl.createdAt
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}
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func (hl *httpLayer) Digest() digest.Digest {
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return hl.digest
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}
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func (hl *httpLayer) Read(p []byte) (n int, err error) {
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if hl.err != nil {
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return 0, hl.err
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}
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rd, err := hl.reader()
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if err != nil {
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return 0, err
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}
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n, err = rd.Read(p)
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hl.offset += int64(n)
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// Simulate io.EOR error if we reach filesize.
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if err == nil && hl.offset >= hl.size {
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err = io.EOF
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}
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return n, err
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}
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func (hl *httpLayer) Seek(offset int64, whence int) (int64, error) {
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if hl.err != nil {
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return 0, hl.err
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}
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var err error
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newOffset := hl.offset
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switch whence {
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case os.SEEK_CUR:
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newOffset += int64(offset)
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case os.SEEK_END:
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newOffset = hl.size + int64(offset)
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case os.SEEK_SET:
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newOffset = int64(offset)
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}
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if newOffset < 0 {
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err = fmt.Errorf("cannot seek to negative position")
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} else {
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if hl.offset != newOffset {
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hl.reset()
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}
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// No problems, set the offset.
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hl.offset = newOffset
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}
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return hl.offset, err
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}
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func (hl *httpLayer) Close() error {
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if hl.err != nil {
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return hl.err
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}
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// close and release reader chain
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if hl.rc != nil {
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hl.rc.Close()
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}
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hl.rc = nil
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hl.brd = nil
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hl.err = fmt.Errorf("httpLayer: closed")
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return nil
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}
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func (hl *httpLayer) reset() {
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if hl.err != nil {
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return
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}
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if hl.rc != nil {
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hl.rc.Close()
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hl.rc = nil
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}
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}
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func (hl *httpLayer) reader() (io.Reader, error) {
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if hl.err != nil {
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return nil, hl.err
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}
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if hl.rc != nil {
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return hl.brd, nil
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}
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// If the offset is great than or equal to size, return a empty, noop reader.
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if hl.offset >= hl.size {
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return ioutil.NopCloser(bytes.NewReader([]byte{})), nil
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}
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blobURL, err := hl.ub.BuildBlobURL(hl.name, hl.digest)
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if err != nil {
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return nil, err
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}
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req, err := http.NewRequest("GET", blobURL, nil)
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if err != nil {
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return nil, err
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}
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if hl.offset > 0 {
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// TODO(stevvooe): Get this working correctly.
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// If we are at different offset, issue a range request from there.
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req.Header.Add("Range", fmt.Sprintf("1-"))
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context.GetLogger(hl.context).Infof("Range: %s", req.Header.Get("Range"))
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}
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resp, err := hl.client.Do(req)
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if err != nil {
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return nil, err
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}
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switch {
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case resp.StatusCode == 200:
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hl.rc = resp.Body
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default:
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defer resp.Body.Close()
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return nil, fmt.Errorf("unexpected status resolving reader: %v", resp.Status)
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}
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if hl.brd == nil {
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hl.brd = bufio.NewReader(hl.rc)
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} else {
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hl.brd.Reset(hl.rc)
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}
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return hl.brd, nil
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}
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func (hl *httpLayer) Length() int64 {
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return hl.size
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}
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func (hl *httpLayer) Handler(r *http.Request) (http.Handler, error) {
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panic("Not implemented")
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}
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164
docs/client/layer_upload.go
Normal file
164
docs/client/layer_upload.go
Normal file
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@ -0,0 +1,164 @@
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package client
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import (
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"bytes"
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"errors"
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"fmt"
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"io"
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"net/http"
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"os"
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"time"
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"github.com/docker/distribution"
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"github.com/docker/distribution/digest"
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)
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type httpLayerUpload struct {
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repo distribution.Repository
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client *http.Client
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uuid string
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startedAt time.Time
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location string // always the last value of the location header.
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offset int64
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closed bool
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}
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func (hlu *httpLayerUpload) handleErrorResponse(resp *http.Response) error {
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switch {
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case resp.StatusCode == http.StatusNotFound:
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return &BlobUploadNotFoundError{Location: hlu.location}
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case resp.StatusCode >= 400 && resp.StatusCode < 500:
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return parseHTTPErrorResponse(resp)
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default:
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return &UnexpectedHTTPStatusError{Status: resp.Status}
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}
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}
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func (hlu *httpLayerUpload) ReadFrom(r io.Reader) (n int64, err error) {
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req, err := http.NewRequest("PATCH", hlu.location, r)
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if err != nil {
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return 0, err
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}
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defer req.Body.Close()
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resp, err := hlu.client.Do(req)
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if err != nil {
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return 0, err
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}
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if resp.StatusCode != http.StatusAccepted {
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return 0, hlu.handleErrorResponse(resp)
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}
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// TODO(dmcgowan): Validate headers
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hlu.uuid = resp.Header.Get("Docker-Upload-UUID")
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hlu.location, err = sanitizeLocation(resp.Header.Get("Location"), hlu.location)
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if err != nil {
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return 0, err
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}
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rng := resp.Header.Get("Range")
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var start, end int64
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if n, err := fmt.Sscanf(rng, "%d-%d", &start, &end); err != nil {
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return 0, err
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} else if n != 2 || end < start {
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return 0, fmt.Errorf("bad range format: %s", rng)
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}
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return (end - start + 1), nil
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}
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func (hlu *httpLayerUpload) Write(p []byte) (n int, err error) {
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req, err := http.NewRequest("PATCH", hlu.location, bytes.NewReader(p))
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if err != nil {
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return 0, err
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}
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req.Header.Set("Content-Range", fmt.Sprintf("%d-%d", hlu.offset, hlu.offset+int64(len(p)-1)))
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req.Header.Set("Content-Length", fmt.Sprintf("%d", len(p)))
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req.Header.Set("Content-Type", "application/octet-stream")
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resp, err := hlu.client.Do(req)
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if err != nil {
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return 0, err
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}
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if resp.StatusCode != http.StatusAccepted {
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return 0, hlu.handleErrorResponse(resp)
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}
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// TODO(dmcgowan): Validate headers
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hlu.uuid = resp.Header.Get("Docker-Upload-UUID")
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hlu.location, err = sanitizeLocation(resp.Header.Get("Location"), hlu.location)
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if err != nil {
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return 0, err
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}
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rng := resp.Header.Get("Range")
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var start, end int
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if n, err := fmt.Sscanf(rng, "%d-%d", &start, &end); err != nil {
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return 0, err
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} else if n != 2 || end < start {
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return 0, fmt.Errorf("bad range format: %s", rng)
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}
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return (end - start + 1), nil
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}
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func (hlu *httpLayerUpload) Seek(offset int64, whence int) (int64, error) {
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newOffset := hlu.offset
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switch whence {
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case os.SEEK_CUR:
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newOffset += int64(offset)
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case os.SEEK_END:
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return newOffset, errors.New("Cannot seek from end on incomplete upload")
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case os.SEEK_SET:
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newOffset = int64(offset)
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}
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hlu.offset = newOffset
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return hlu.offset, nil
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}
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func (hlu *httpLayerUpload) UUID() string {
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return hlu.uuid
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}
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func (hlu *httpLayerUpload) StartedAt() time.Time {
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return hlu.startedAt
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}
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func (hlu *httpLayerUpload) Finish(digest digest.Digest) (distribution.Layer, error) {
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// TODO(dmcgowan): Check if already finished, if so just fetch
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req, err := http.NewRequest("PUT", hlu.location, nil)
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if err != nil {
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return nil, err
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}
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values := req.URL.Query()
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values.Set("digest", digest.String())
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req.URL.RawQuery = values.Encode()
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resp, err := hlu.client.Do(req)
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if err != nil {
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return nil, err
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}
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if resp.StatusCode != http.StatusCreated {
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return nil, hlu.handleErrorResponse(resp)
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}
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return hlu.repo.Layers().Fetch(digest)
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}
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func (hlu *httpLayerUpload) Cancel() error {
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panic("not implemented")
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}
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func (hlu *httpLayerUpload) Close() error {
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hlu.closed = true
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return nil
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}
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223
docs/client/layer_upload_test.go
Normal file
223
docs/client/layer_upload_test.go
Normal file
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@ -0,0 +1,223 @@
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package client
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import (
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"bytes"
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"fmt"
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"net/http"
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"testing"
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"github.com/docker/distribution"
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"github.com/docker/distribution/registry/api/v2"
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"github.com/docker/distribution/testutil"
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)
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// Test implements distribution.LayerUpload
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var _ distribution.LayerUpload = &httpLayerUpload{}
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func TestUploadReadFrom(t *testing.T) {
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_, b := newRandomBlob(64)
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repo := "test/upload/readfrom"
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locationPath := fmt.Sprintf("/v2/%s/uploads/testid", repo)
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m := testutil.RequestResponseMap([]testutil.RequestResponseMapping{
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{
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Request: testutil.Request{
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Method: "GET",
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Route: "/v2/",
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},
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Response: testutil.Response{
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StatusCode: http.StatusOK,
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Headers: http.Header(map[string][]string{
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"Docker-Distribution-API-Version": {"registry/2.0"},
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}),
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},
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},
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// Test Valid case
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{
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Request: testutil.Request{
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Method: "PATCH",
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Route: locationPath,
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Body: b,
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},
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Response: testutil.Response{
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StatusCode: http.StatusAccepted,
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Headers: http.Header(map[string][]string{
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"Docker-Upload-UUID": {"46603072-7a1b-4b41-98f9-fd8a7da89f9b"},
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"Location": {locationPath},
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"Range": {"0-63"},
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}),
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},
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},
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// Test invalid range
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{
|
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Request: testutil.Request{
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Method: "PATCH",
|
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Route: locationPath,
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Body: b,
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},
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Response: testutil.Response{
|
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StatusCode: http.StatusAccepted,
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Headers: http.Header(map[string][]string{
|
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"Docker-Upload-UUID": {"46603072-7a1b-4b41-98f9-fd8a7da89f9b"},
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"Location": {locationPath},
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"Range": {""},
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}),
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},
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},
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// Test 404
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{
|
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Request: testutil.Request{
|
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Method: "PATCH",
|
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Route: locationPath,
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Body: b,
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},
|
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Response: testutil.Response{
|
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StatusCode: http.StatusNotFound,
|
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},
|
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},
|
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// Test 400 valid json
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{
|
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Request: testutil.Request{
|
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Method: "PATCH",
|
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Route: locationPath,
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Body: b,
|
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},
|
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Response: testutil.Response{
|
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StatusCode: http.StatusBadRequest,
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Body: []byte(`
|
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{
|
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"errors": [
|
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{
|
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"code": "BLOB_UPLOAD_INVALID",
|
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"message": "invalid upload identifier",
|
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"detail": "more detail"
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}
|
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]
|
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}`),
|
||||
},
|
||||
},
|
||||
// Test 400 invalid json
|
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{
|
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Request: testutil.Request{
|
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Method: "PATCH",
|
||||
Route: locationPath,
|
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Body: b,
|
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},
|
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Response: testutil.Response{
|
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StatusCode: http.StatusBadRequest,
|
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Body: []byte("something bad happened"),
|
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},
|
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},
|
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// Test 500
|
||||
{
|
||||
Request: testutil.Request{
|
||||
Method: "PATCH",
|
||||
Route: locationPath,
|
||||
Body: b,
|
||||
},
|
||||
Response: testutil.Response{
|
||||
StatusCode: http.StatusInternalServerError,
|
||||
},
|
||||
},
|
||||
})
|
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|
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e, c := testServer(m)
|
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defer c()
|
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|
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client, err := e.HTTPClient(repo)
|
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if err != nil {
|
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t.Fatalf("Error creating client: %s", err)
|
||||
}
|
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layerUpload := &httpLayerUpload{
|
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client: client,
|
||||
}
|
||||
|
||||
// Valid case
|
||||
layerUpload.location = e.Endpoint + locationPath
|
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n, err := layerUpload.ReadFrom(bytes.NewReader(b))
|
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if err != nil {
|
||||
t.Fatalf("Error calling ReadFrom: %s", err)
|
||||
}
|
||||
if n != 64 {
|
||||
t.Fatalf("Wrong length returned from ReadFrom: %d, expected 64", n)
|
||||
}
|
||||
|
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// Bad range
|
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layerUpload.location = e.Endpoint + locationPath
|
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_, err = layerUpload.ReadFrom(bytes.NewReader(b))
|
||||
if err == nil {
|
||||
t.Fatalf("Expected error when bad range received")
|
||||
}
|
||||
|
||||
// 404
|
||||
layerUpload.location = e.Endpoint + locationPath
|
||||
_, err = layerUpload.ReadFrom(bytes.NewReader(b))
|
||||
if err == nil {
|
||||
t.Fatalf("Expected error when not found")
|
||||
}
|
||||
if blobErr, ok := err.(*BlobUploadNotFoundError); !ok {
|
||||
t.Fatalf("Wrong error type %T: %s", err, err)
|
||||
} else if expected := e.Endpoint + locationPath; blobErr.Location != expected {
|
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t.Fatalf("Unexpected location: %s, expected %s", blobErr.Location, expected)
|
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}
|
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|
||||
// 400 valid json
|
||||
layerUpload.location = e.Endpoint + locationPath
|
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_, err = layerUpload.ReadFrom(bytes.NewReader(b))
|
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if err == nil {
|
||||
t.Fatalf("Expected error when not found")
|
||||
}
|
||||
if uploadErr, ok := err.(*v2.Errors); !ok {
|
||||
t.Fatalf("Wrong error type %T: %s", err, err)
|
||||
} else if len(uploadErr.Errors) != 1 {
|
||||
t.Fatalf("Unexpected number of errors: %d, expected 1", len(uploadErr.Errors))
|
||||
} else {
|
||||
v2Err := uploadErr.Errors[0]
|
||||
if v2Err.Code != v2.ErrorCodeBlobUploadInvalid {
|
||||
t.Fatalf("Unexpected error code: %s, expected %s", v2Err.Code.String(), v2.ErrorCodeBlobUploadInvalid.String())
|
||||
}
|
||||
if expected := "invalid upload identifier"; v2Err.Message != expected {
|
||||
t.Fatalf("Unexpected error message: %s, expected %s", v2Err.Message, expected)
|
||||
}
|
||||
if expected := "more detail"; v2Err.Detail.(string) != expected {
|
||||
t.Fatalf("Unexpected error message: %s, expected %s", v2Err.Detail.(string), expected)
|
||||
}
|
||||
}
|
||||
|
||||
// 400 invalid json
|
||||
layerUpload.location = e.Endpoint + locationPath
|
||||
_, err = layerUpload.ReadFrom(bytes.NewReader(b))
|
||||
if err == nil {
|
||||
t.Fatalf("Expected error when not found")
|
||||
}
|
||||
if uploadErr, ok := err.(*UnexpectedHTTPResponseError); !ok {
|
||||
t.Fatalf("Wrong error type %T: %s", err, err)
|
||||
} else {
|
||||
respStr := string(uploadErr.Response)
|
||||
if expected := "something bad happened"; respStr != expected {
|
||||
t.Fatalf("Unexpected response string: %s, expected: %s", respStr, expected)
|
||||
}
|
||||
}
|
||||
|
||||
// 500
|
||||
layerUpload.location = e.Endpoint + locationPath
|
||||
_, err = layerUpload.ReadFrom(bytes.NewReader(b))
|
||||
if err == nil {
|
||||
t.Fatalf("Expected error when not found")
|
||||
}
|
||||
if uploadErr, ok := err.(*UnexpectedHTTPStatusError); !ok {
|
||||
t.Fatalf("Wrong error type %T: %s", err, err)
|
||||
} else if expected := "500 " + http.StatusText(http.StatusInternalServerError); uploadErr.Status != expected {
|
||||
t.Fatalf("Unexpected response status: %s, expected %s", uploadErr.Status, expected)
|
||||
}
|
||||
}
|
||||
|
||||
//repo distribution.Repository
|
||||
//client *http.Client
|
||||
|
||||
//uuid string
|
||||
//startedAt time.Time
|
||||
|
||||
//location string // always the last value of the location header.
|
||||
//offset int64
|
||||
//closed bool
|
||||
|
|
@ -1,21 +1,14 @@
|
|||
package client
|
||||
|
||||
import (
|
||||
"bufio"
|
||||
"bytes"
|
||||
"encoding/json"
|
||||
"errors"
|
||||
"fmt"
|
||||
"io"
|
||||
"io/ioutil"
|
||||
"net/http"
|
||||
"net/url"
|
||||
"os"
|
||||
"strconv"
|
||||
"time"
|
||||
|
||||
ctxu "github.com/docker/distribution/context"
|
||||
|
||||
"github.com/docker/distribution/manifest"
|
||||
|
||||
"github.com/docker/distribution/digest"
|
||||
|
|
@ -276,7 +269,8 @@ func (ls *layers) Upload() (distribution.LayerUpload, error) {
|
|||
}
|
||||
|
||||
return &httpLayerUpload{
|
||||
layers: ls,
|
||||
repo: ls.repository,
|
||||
client: ls.client,
|
||||
uuid: uuid,
|
||||
startedAt: time.Now(),
|
||||
location: location,
|
||||
|
|
@ -339,319 +333,3 @@ func (ls *layers) fetchLayer(dgst digest.Digest) (distribution.Layer, error) {
|
|||
return nil, &UnexpectedHTTPStatusError{Status: resp.Status}
|
||||
}
|
||||
}
|
||||
|
||||
type httpLayer struct {
|
||||
*layers
|
||||
|
||||
size int64
|
||||
digest digest.Digest
|
||||
createdAt time.Time
|
||||
|
||||
rc io.ReadCloser // remote read closer
|
||||
brd *bufio.Reader // internal buffered io
|
||||
offset int64
|
||||
err error
|
||||
}
|
||||
|
||||
func (hl *httpLayer) CreatedAt() time.Time {
|
||||
return hl.createdAt
|
||||
}
|
||||
|
||||
func (hl *httpLayer) Digest() digest.Digest {
|
||||
return hl.digest
|
||||
}
|
||||
|
||||
func (hl *httpLayer) Read(p []byte) (n int, err error) {
|
||||
if hl.err != nil {
|
||||
return 0, hl.err
|
||||
}
|
||||
|
||||
rd, err := hl.reader()
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
|
||||
n, err = rd.Read(p)
|
||||
hl.offset += int64(n)
|
||||
|
||||
// Simulate io.EOR error if we reach filesize.
|
||||
if err == nil && hl.offset >= hl.size {
|
||||
err = io.EOF
|
||||
}
|
||||
|
||||
return n, err
|
||||
}
|
||||
|
||||
func (hl *httpLayer) Seek(offset int64, whence int) (int64, error) {
|
||||
if hl.err != nil {
|
||||
return 0, hl.err
|
||||
}
|
||||
|
||||
var err error
|
||||
newOffset := hl.offset
|
||||
|
||||
switch whence {
|
||||
case os.SEEK_CUR:
|
||||
newOffset += int64(offset)
|
||||
case os.SEEK_END:
|
||||
newOffset = hl.size + int64(offset)
|
||||
case os.SEEK_SET:
|
||||
newOffset = int64(offset)
|
||||
}
|
||||
|
||||
if newOffset < 0 {
|
||||
err = fmt.Errorf("cannot seek to negative position")
|
||||
} else {
|
||||
if hl.offset != newOffset {
|
||||
hl.reset()
|
||||
}
|
||||
|
||||
// No problems, set the offset.
|
||||
hl.offset = newOffset
|
||||
}
|
||||
|
||||
return hl.offset, err
|
||||
}
|
||||
|
||||
func (hl *httpLayer) Close() error {
|
||||
if hl.err != nil {
|
||||
return hl.err
|
||||
}
|
||||
|
||||
// close and release reader chain
|
||||
if hl.rc != nil {
|
||||
hl.rc.Close()
|
||||
}
|
||||
|
||||
hl.rc = nil
|
||||
hl.brd = nil
|
||||
|
||||
hl.err = fmt.Errorf("httpLayer: closed")
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func (hl *httpLayer) reset() {
|
||||
if hl.err != nil {
|
||||
return
|
||||
}
|
||||
if hl.rc != nil {
|
||||
hl.rc.Close()
|
||||
hl.rc = nil
|
||||
}
|
||||
}
|
||||
|
||||
func (hl *httpLayer) reader() (io.Reader, error) {
|
||||
if hl.err != nil {
|
||||
return nil, hl.err
|
||||
}
|
||||
|
||||
if hl.rc != nil {
|
||||
return hl.brd, nil
|
||||
}
|
||||
|
||||
// If the offset is great than or equal to size, return a empty, noop reader.
|
||||
if hl.offset >= hl.size {
|
||||
return ioutil.NopCloser(bytes.NewReader([]byte{})), nil
|
||||
}
|
||||
|
||||
blobURL, err := hl.ub.BuildBlobURL(hl.name, hl.digest)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
req, err := http.NewRequest("GET", blobURL, nil)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
if hl.offset > 0 {
|
||||
// TODO(stevvooe): Get this working correctly.
|
||||
|
||||
// If we are at different offset, issue a range request from there.
|
||||
req.Header.Add("Range", fmt.Sprintf("1-"))
|
||||
ctxu.GetLogger(hl.context).Infof("Range: %s", req.Header.Get("Range"))
|
||||
}
|
||||
|
||||
resp, err := hl.client.Do(req)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
switch {
|
||||
case resp.StatusCode == 200:
|
||||
hl.rc = resp.Body
|
||||
default:
|
||||
defer resp.Body.Close()
|
||||
return nil, fmt.Errorf("unexpected status resolving reader: %v", resp.Status)
|
||||
}
|
||||
|
||||
if hl.brd == nil {
|
||||
hl.brd = bufio.NewReader(hl.rc)
|
||||
} else {
|
||||
hl.brd.Reset(hl.rc)
|
||||
}
|
||||
|
||||
return hl.brd, nil
|
||||
}
|
||||
|
||||
func (hl *httpLayer) Length() int64 {
|
||||
return hl.size
|
||||
}
|
||||
|
||||
func (hl *httpLayer) Handler(r *http.Request) (http.Handler, error) {
|
||||
panic("Not implemented")
|
||||
}
|
||||
|
||||
type httpLayerUpload struct {
|
||||
*layers
|
||||
|
||||
uuid string
|
||||
startedAt time.Time
|
||||
|
||||
location string // always the last value of the location header.
|
||||
offset int64
|
||||
closed bool
|
||||
}
|
||||
|
||||
var _ distribution.LayerUpload = &httpLayerUpload{}
|
||||
|
||||
func (hlu *httpLayerUpload) ReadFrom(r io.Reader) (n int64, err error) {
|
||||
req, err := http.NewRequest("PATCH", hlu.location, r)
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
defer req.Body.Close()
|
||||
|
||||
resp, err := hlu.client.Do(req)
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
|
||||
switch {
|
||||
case resp.StatusCode == http.StatusAccepted:
|
||||
// TODO(dmcgowan): Validate headers
|
||||
hlu.uuid = resp.Header.Get("Docker-Upload-UUID")
|
||||
hlu.location, err = sanitizeLocation(resp.Header.Get("Location"), hlu.location)
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
rng := resp.Header.Get("Range")
|
||||
var start, end int64
|
||||
if n, err := fmt.Sscanf(rng, "%d-%d", &start, &end); err != nil {
|
||||
return 0, err
|
||||
} else if n != 2 || end < start {
|
||||
return 0, fmt.Errorf("bad range format: %s", rng)
|
||||
}
|
||||
|
||||
return (end - start + 1), nil
|
||||
case resp.StatusCode == http.StatusNotFound:
|
||||
return 0, &BlobUploadNotFoundError{Location: hlu.location}
|
||||
case resp.StatusCode >= 400 && resp.StatusCode < 500:
|
||||
return 0, parseHTTPErrorResponse(resp)
|
||||
default:
|
||||
return 0, &UnexpectedHTTPStatusError{Status: resp.Status}
|
||||
}
|
||||
}
|
||||
|
||||
func (hlu *httpLayerUpload) Write(p []byte) (n int, err error) {
|
||||
req, err := http.NewRequest("PATCH", hlu.location, bytes.NewReader(p))
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
req.Header.Set("Content-Range", fmt.Sprintf("%d-%d", hlu.offset, hlu.offset+int64(len(p)-1)))
|
||||
req.Header.Set("Content-Length", fmt.Sprintf("%d", len(p)))
|
||||
req.Header.Set("Content-Type", "application/octet-stream")
|
||||
|
||||
resp, err := hlu.client.Do(req)
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
|
||||
switch {
|
||||
case resp.StatusCode == http.StatusAccepted:
|
||||
// TODO(dmcgowan): Validate headers
|
||||
hlu.uuid = resp.Header.Get("Docker-Upload-UUID")
|
||||
hlu.location, err = sanitizeLocation(resp.Header.Get("Location"), hlu.location)
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
rng := resp.Header.Get("Range")
|
||||
var start, end int
|
||||
if n, err := fmt.Sscanf(rng, "%d-%d", &start, &end); err != nil {
|
||||
return 0, err
|
||||
} else if n != 2 || end < start {
|
||||
return 0, fmt.Errorf("bad range format: %s", rng)
|
||||
}
|
||||
|
||||
return (end - start + 1), nil
|
||||
case resp.StatusCode == http.StatusNotFound:
|
||||
return 0, &BlobUploadNotFoundError{Location: hlu.location}
|
||||
case resp.StatusCode >= 400 && resp.StatusCode < 500:
|
||||
return 0, parseHTTPErrorResponse(resp)
|
||||
default:
|
||||
return 0, &UnexpectedHTTPStatusError{Status: resp.Status}
|
||||
}
|
||||
}
|
||||
|
||||
func (hlu *httpLayerUpload) Seek(offset int64, whence int) (int64, error) {
|
||||
newOffset := hlu.offset
|
||||
|
||||
switch whence {
|
||||
case os.SEEK_CUR:
|
||||
newOffset += int64(offset)
|
||||
case os.SEEK_END:
|
||||
return newOffset, errors.New("Cannot seek from end on incomplete upload")
|
||||
case os.SEEK_SET:
|
||||
newOffset = int64(offset)
|
||||
}
|
||||
|
||||
hlu.offset = newOffset
|
||||
|
||||
return hlu.offset, nil
|
||||
}
|
||||
|
||||
func (hlu *httpLayerUpload) UUID() string {
|
||||
return hlu.uuid
|
||||
}
|
||||
|
||||
func (hlu *httpLayerUpload) StartedAt() time.Time {
|
||||
return hlu.startedAt
|
||||
}
|
||||
|
||||
func (hlu *httpLayerUpload) Finish(digest digest.Digest) (distribution.Layer, error) {
|
||||
// TODO(dmcgowan): Check if already finished, if so just fetch
|
||||
req, err := http.NewRequest("PUT", hlu.location, nil)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
values := req.URL.Query()
|
||||
values.Set("digest", digest.String())
|
||||
req.URL.RawQuery = values.Encode()
|
||||
|
||||
resp, err := hlu.client.Do(req)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
switch {
|
||||
case resp.StatusCode == http.StatusCreated:
|
||||
return hlu.Layers().Fetch(digest)
|
||||
case resp.StatusCode == http.StatusNotFound:
|
||||
return nil, &BlobUploadNotFoundError{Location: hlu.location}
|
||||
case resp.StatusCode >= 400 && resp.StatusCode < 500:
|
||||
return nil, parseHTTPErrorResponse(resp)
|
||||
default:
|
||||
return nil, &UnexpectedHTTPStatusError{Status: resp.Status}
|
||||
}
|
||||
}
|
||||
|
||||
func (hlu *httpLayerUpload) Cancel() error {
|
||||
panic("not implemented")
|
||||
}
|
||||
|
||||
func (hlu *httpLayerUpload) Close() error {
|
||||
hlu.closed = true
|
||||
return nil
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue