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Support Range header end in lfs (#11314) 

* Initial support of end Range header option in lfs

* Allow end range option to be unspecified

* Declare toByte for consistency

* Factor out content encoding tests from doLfs

This is so Range tests could still use doLfs but without repeating
not related tests

* Add Range header test

* implemented extraHeader
* parametrized expectedStatus

* Add more test cases of Range header

* Fix S1030: should use resp.Body.String()

* Add more tests for edge cases

* Fix tests

Signed-off-by: Andrew Thornton <art27@cantab.net>

Co-authored-by: zeripath <art27@cantab.net>
This commit is contained in:
burbon 2020-05-11 09:37:59 +01:00 committed by GitHub
parent 742e26f5a5
commit d8e6acda8c
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 119 additions and 18 deletions
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117
integrations/lfs_getobject_test.go
View File

@ -12,6 +12,7 @@ import (
"io"
"io/ioutil"
"net/http"
"net/http/httptest"
"testing"
"code.gitea.io/gitea/models"
@ -56,13 +57,7 @@ func storeObjectInRepo(t *testing.T, repositoryID int64, content *[]byte) string
return oid
}
func doLfs(t *testing.T, content *[]byte, expectGzip bool) {
defer prepareTestEnv(t)()
setting.CheckLFSVersion()
if !setting.LFS.StartServer {
t.Skip()
return
}
func storeAndGetLfs(t *testing.T, content *[]byte, extraHeader *http.Header, expectedStatus int) *httptest.ResponseRecorder {
repo, err := models.GetRepositoryByOwnerAndName("user2", "repo1")
assert.NoError(t, err)
oid := storeObjectInRepo(t, repo.ID, content)
@ -73,8 +68,19 @@ func doLfs(t *testing.T, content *[]byte, expectGzip bool) {
// Request OID
req := NewRequest(t, "GET", "/user2/repo1.git/info/lfs/objects/"+oid+"/test")
req.Header.Set("Accept-Encoding", "gzip")
resp := session.MakeRequest(t, req, http.StatusOK)
if extraHeader != nil {
for key, values := range *extraHeader {
for _, value := range values {
req.Header.Add(key, value)
}
}
}
resp := session.MakeRequest(t, req, expectedStatus)
return resp
}
func checkResponseTestContentEncoding(t *testing.T, content *[]byte, resp *httptest.ResponseRecorder, expectGzip bool) {
contentEncoding := resp.Header().Get("Content-Encoding")
if !expectGzip || !setting.EnableGzip {
assert.NotContains(t, contentEncoding, "gzip")
@ -89,23 +95,44 @@ func doLfs(t *testing.T, content *[]byte, expectGzip bool) {
assert.NoError(t, err)
assert.Equal(t, *content, result)
}
}
func TestGetLFSSmall(t *testing.T) {
defer prepareTestEnv(t)()
setting.CheckLFSVersion()
if !setting.LFS.StartServer {
t.Skip()
return
}
content := []byte("A very small file\n")
doLfs(t, &content, false)
resp := storeAndGetLfs(t, &content, nil, http.StatusOK)
checkResponseTestContentEncoding(t, &content, resp, false)
}
func TestGetLFSLarge(t *testing.T) {
defer prepareTestEnv(t)()
setting.CheckLFSVersion()
if !setting.LFS.StartServer {
t.Skip()
return
}
content := make([]byte, gzip.MinSize*10)
for i := range content {
content[i] = byte(i % 256)
}
doLfs(t, &content, true)
resp := storeAndGetLfs(t, &content, nil, http.StatusOK)
checkResponseTestContentEncoding(t, &content, resp, true)
}
func TestGetLFSGzip(t *testing.T) {
defer prepareTestEnv(t)()
setting.CheckLFSVersion()
if !setting.LFS.StartServer {
t.Skip()
return
}
b := make([]byte, gzip.MinSize*10)
for i := range b {
b[i] = byte(i % 256)
@ -115,10 +142,18 @@ func TestGetLFSGzip(t *testing.T) {
gzippWriter.Write(b)
gzippWriter.Close()
content := outputBuffer.Bytes()
doLfs(t, &content, false)
resp := storeAndGetLfs(t, &content, nil, http.StatusOK)
checkResponseTestContentEncoding(t, &content, resp, false)
}
func TestGetLFSZip(t *testing.T) {
defer prepareTestEnv(t)()
setting.CheckLFSVersion()
if !setting.LFS.StartServer {
t.Skip()
return
}
b := make([]byte, gzip.MinSize*10)
for i := range b {
b[i] = byte(i % 256)
@ -130,5 +165,61 @@ func TestGetLFSZip(t *testing.T) {
fileWriter.Write(b)
zipWriter.Close()
content := outputBuffer.Bytes()
doLfs(t, &content, false)
resp := storeAndGetLfs(t, &content, nil, http.StatusOK)
checkResponseTestContentEncoding(t, &content, resp, false)
}
func TestGetLFSRangeNo(t *testing.T) {
defer prepareTestEnv(t)()
setting.CheckLFSVersion()
if !setting.LFS.StartServer {
t.Skip()
return
}
content := []byte("123456789\n")
resp := storeAndGetLfs(t, &content, nil, http.StatusOK)
assert.Equal(t, content, resp.Body.Bytes())
}
func TestGetLFSRange(t *testing.T) {
defer prepareTestEnv(t)()
setting.CheckLFSVersion()
if !setting.LFS.StartServer {
t.Skip()
return
}
content := []byte("123456789\n")
tests := []struct {
in string
out string
status int
}{
{"bytes=0-0", "1", http.StatusPartialContent},
{"bytes=0-1", "12", http.StatusPartialContent},
{"bytes=1-1", "2", http.StatusPartialContent},
{"bytes=1-3", "234", http.StatusPartialContent},
{"bytes=1-", "23456789\n", http.StatusPartialContent},
// end-range smaller than start-range is ignored
{"bytes=1-0", "23456789\n", http.StatusPartialContent},
{"bytes=0-10", "123456789\n", http.StatusPartialContent},
// end-range bigger than length-1 is ignored
{"bytes=0-11", "123456789\n", http.StatusPartialContent},
{"bytes=11-", "", http.StatusPartialContent},
// incorrect header value cause whole header to be ignored
{"bytes=-", "123456789\n", http.StatusOK},
{"foobar", "123456789\n", http.StatusOK},
}
for _, tt := range tests {
t.Run(tt.in, func(t *testing.T) {
h := http.Header{
"Range": []string{tt.in},
}
resp := storeAndGetLfs(t, &content, &h, tt.status)
assert.Equal(t, tt.out, resp.Body.String())
})
}
}

20
modules/lfs/server.go
View File

@ -165,15 +165,24 @@ func getContentHandler(ctx *context.Context) {
}
// Support resume download using Range header
var fromByte int64
var fromByte, toByte int64
toByte = meta.Size - 1
statusCode := 200
if rangeHdr := ctx.Req.Header.Get("Range"); rangeHdr != "" {
regex := regexp.MustCompile(`bytes=(\d+)\-.*`)
regex := regexp.MustCompile(`bytes=(\d+)\-(\d*).*`)
match := regex.FindStringSubmatch(rangeHdr)
if len(match) > 1 {
statusCode = 206
fromByte, _ = strconv.ParseInt(match[1], 10, 32)
ctx.Resp.Header().Set("Content-Range", fmt.Sprintf("bytes %d-%d/%d", fromByte, meta.Size-1, meta.Size-fromByte))
if match[2] != "" {
_toByte, _ := strconv.ParseInt(match[2], 10, 32)
if _toByte >= fromByte && _toByte < toByte {
toByte = _toByte
}
}
ctx.Resp.Header().Set("Content-Range", fmt.Sprintf("bytes %d-%d/%d", fromByte, toByte, meta.Size-fromByte))
}
}
@ -186,7 +195,8 @@ func getContentHandler(ctx *context.Context) {
}
defer content.Close()
ctx.Resp.Header().Set("Content-Length", strconv.FormatInt(meta.Size-fromByte, 10))
contentLength := toByte + 1 - fromByte
ctx.Resp.Header().Set("Content-Length", strconv.FormatInt(contentLength, 10))
ctx.Resp.Header().Set("Content-Type", "application/octet-stream")
filename := ctx.Params("filename")
@ -198,7 +208,7 @@ func getContentHandler(ctx *context.Context) {
}
ctx.Resp.WriteHeader(statusCode)
if written, err := io.Copy(ctx.Resp, content); err != nil {
if written, err := io.CopyN(ctx.Resp, content, contentLength); err != nil {
log.Error("Error whilst copying LFS OID[%s] to the response after %d bytes. Error: %v", meta.Oid, written, err)
}
logRequest(ctx.Req, statusCode)