/
api_handler_object.go
1714 lines (1564 loc) · 51.9 KB
/
api_handler_object.go
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// Copyright 2019 The ChubaoFS Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
// implied. See the License for the specific language governing
// permissions and limitations under the License.
package objectnode
import (
"encoding/base64"
"encoding/hex"
"encoding/xml"
"fmt"
"io"
"io/ioutil"
"net/http"
"regexp"
"sort"
"strconv"
"strings"
"syscall"
"github.com/cubefs/cubefs/proto"
"github.com/cubefs/cubefs/util/log"
)
var (
rangeRegexp = regexp.MustCompile("^bytes=(\\d)*-(\\d)*$")
)
// Get object
// API reference: https://docs.aws.amazon.com/AmazonS3/latest/API/API_GetObject.html
func (o *ObjectNode) getObjectHandler(w http.ResponseWriter, r *http.Request) {
var (
err error
errorCode *ErrorCode
)
defer func() {
if errorCode != nil {
_ = errorCode.ServeResponse(w, r)
return
}
}()
var param = ParseRequestParam(r)
if param.Bucket() == "" {
errorCode = InvalidBucketName
return
}
if param.Object() == "" {
errorCode = InvalidKey
return
}
var vol *Volume
if vol, err = o.vm.Volume(param.Bucket()); err != nil {
log.LogErrorf("getObjectHandler: load volume fail: requestID(%v) err(%v)",
GetRequestID(r), err)
errorCode = NoSuchBucket
return
}
// parse http range option
var rangeOpt = strings.TrimSpace(r.Header.Get(HeaderNameRange))
var rangeLower uint64
var rangeUpper uint64
var isRangeRead bool
var partSize uint64
var partCount uint64
revRange := false
if len(rangeOpt) > 0 {
if !rangeRegexp.MatchString(rangeOpt) {
log.LogWarnf("getObjectHandler: getObject fail: requestID(%v) invalid rangeOpt(%v)",
GetRequestID(r), rangeOpt)
errorCode = InvalidRange
return
} else {
var hyphenIndex = strings.Index(rangeOpt, "-")
if hyphenIndex < 0 {
log.LogWarnf("getObjectHandler: getObject fail: requestID(%v) invalid rangeOpt(%v)",
GetRequestID(r), rangeOpt)
errorCode = InvalidRange
return
}
var lowerPart = rangeOpt[len("bytes="):hyphenIndex]
var upperPart = ""
if hyphenIndex+1 < len(rangeOpt) {
// bytes=-5
if hyphenIndex == len("bytes=") { //suffix range opt
revRange = true
rangeUpper = 1<<64 - 1
lowerPart = rangeOpt[hyphenIndex+1:]
} else { // bytes=1-10
upperPart = rangeOpt[hyphenIndex+1:]
}
} else if hyphenIndex+1 == len(rangeOpt) { // bytes=1-
rangeUpper = 1<<64 - 1
}
if len(lowerPart) > 0 {
if rangeLower, err = strconv.ParseUint(lowerPart, 10, 64); err != nil {
log.LogErrorf("getObjectHandler: parse range lower fail: requestID(%v) rangeOpt(%v) err(%v)",
GetRequestID(r), rangeOpt, err)
ServeInternalStaticErrorResponse(w, r)
return
}
}
if len(upperPart) > 0 {
if rangeUpper, err = strconv.ParseUint(upperPart, 10, 64); err != nil {
log.LogErrorf("getObjectHandler: parse range upper fail: requestID(%v) rangeOpt(%v) err(%v)",
GetRequestID(r), rangeOpt, err)
ServeInternalStaticErrorResponse(w, r)
return
}
}
if rangeUpper < rangeLower {
// upper enabled and lower than lower side
log.LogWarnf("getObjectHandler: getObject fail: requestID(%v) invalid rangeOpt(%v)",
GetRequestID(r), rangeOpt)
errorCode = InvalidRange
return
}
isRangeRead = true
log.LogDebugf("getObjectHandler: parse range option: requestID(%v) rangeOpt(%v) rangeLower(%v) rangeUpper(%v)",
GetRequestID(r), rangeOpt, rangeLower, rangeUpper)
}
}
responseCacheControl := r.URL.Query().Get(ParamResponseCacheControl)
if len(responseCacheControl) > 0 && !ValidateCacheControl(responseCacheControl) {
errorCode = InvalidCacheArgument
return
}
responseExpires := r.URL.Query().Get(ParamResponseExpires)
if len(responseExpires) > 0 && !ValidateCacheExpires(responseExpires) {
errorCode = InvalidCacheArgument
return
}
responseContentType := r.URL.Query().Get(ParamResponseContentType)
responseContentDisposition := r.URL.Query().Get(ParamResponseContentDisposition)
// get object meta
var fileInfo *FSFileInfo
fileInfo, err = vol.ObjectMeta(param.Object())
if err == syscall.ENOENT {
errorCode = NoSuchKey
return
}
if err != nil {
log.LogErrorf("getObjectHandler: get file meta fail: requestId(%v) volume(%v) path(%v) err(%v)",
GetRequestID(r), vol.Name(), param.Object(), err)
errorCode = InternalErrorCode(err)
return
}
// parse request header
match := r.Header.Get(HeaderNameIfMatch)
noneMatch := r.Header.Get(HeaderNameIfNoneMatch)
modified := r.Header.Get(HeaderNameIfModifiedSince)
unmodified := r.Header.Get(HeaderNameIfUnmodifiedSince)
// Checking precondition: If-Match
// Reference: https://docs.aws.amazon.com/AmazonS3/latest/API/API_GetObject.html#API_GetObject_RequestSyntax
if match != "" {
if matchEag := strings.Trim(match, "\""); matchEag != fileInfo.ETag {
log.LogDebugf("getObjectHandler: object eTag(%s) not match If-Match header value(%s), requestId(%v)",
fileInfo.ETag, matchEag, GetRequestID(r))
errorCode = PreconditionFailed
return
}
}
// Checking precondition: If-Modified-Since
// Reference: https://docs.aws.amazon.com/AmazonS3/latest/API/API_GetObject.html#API_GetObject_RequestSyntax
if modified != "" {
fileModTime := fileInfo.ModifyTime
modifiedTime, err := parseTimeRFC1123(modified)
if err != nil {
log.LogErrorf("getObjectHandler: parse RFC1123 time fail: requestID(%v) err(%v)", GetRequestID(r), err)
errorCode = InvalidArgument
return
}
if !fileModTime.After(modifiedTime) {
log.LogInfof("getObjectHandler: file modified time not after than specified time: requestID(%v)", GetRequestID(r))
errorCode = NotModified
return
}
}
// Checking precondition: If-None-Match
// Reference: https://docs.aws.amazon.com/AmazonS3/latest/API/API_GetObject.html#API_GetObject_RequestSyntax
if noneMatch != "" {
if noneMatchEtag := strings.Trim(noneMatch, "\""); noneMatchEtag == fileInfo.ETag {
log.LogErrorf("getObjectHandler: object eTag(%s) match If-None-Match header value(%s), requestId(%v)",
fileInfo.ETag, noneMatchEtag, GetRequestID(r))
errorCode = NotModified
return
}
}
// Checking precondition: If-Unmodified-Since
// Reference: https://docs.aws.amazon.com/AmazonS3/latest/API/API_GetObject.html#API_GetObject_RequestSyntax
if unmodified != "" && match == "" {
fileModTime := fileInfo.ModifyTime
modifiedTime, err := parseTimeRFC1123(unmodified)
if err != nil {
log.LogErrorf("getObjectHandler: parse RFC1123 time fail: requestID(%v) err(%v)", GetRequestID(r), err)
errorCode = InvalidArgument
return
}
if fileModTime.After(modifiedTime) {
log.LogInfof("getObjectHandler: file modified time after than specified time: requestID(%v)", GetRequestID(r))
errorCode = PreconditionFailed
return
}
}
// validate and fix range
if isRangeRead && rangeUpper > uint64(fileInfo.Size)-1 {
rangeUpper = uint64(fileInfo.Size) - 1
if revRange && rangeLower > 0 {
rangeLower = rangeUpper + 1 - rangeLower
}
}
// compute content length
var contentLength = uint64(fileInfo.Size)
if isRangeRead {
contentLength = rangeUpper - rangeLower + 1
w.WriteHeader(http.StatusPartialContent)
}
// get object tagging size
var xattrInfo *proto.XAttrInfo
if xattrInfo, err = vol.GetXAttr(param.object, XAttrKeyOSSTagging); err != nil && err != syscall.ENOENT {
log.LogErrorf("getObjectHandler: Volume get XAttr fail: requestID(%v) err(%v)", GetRequestID(r), err)
errorCode = InternalErrorCode(err)
return
}
if xattrInfo != nil {
ossTaggingData := xattrInfo.Get(XAttrKeyOSSTagging)
output, _ := ParseTagging(string(ossTaggingData))
if output != nil && len(output.TagSet) > 0 {
w.Header()[HeaderNameXAmzTaggingCount] = []string{strconv.Itoa(len(output.TagSet))}
}
}
// set response header for GetObject
w.Header()[HeaderNameAcceptRange] = []string{HeaderValueAcceptRange}
w.Header()[HeaderNameLastModified] = []string{formatTimeRFC1123(fileInfo.ModifyTime)}
if len(responseContentType) > 0 {
w.Header()[HeaderNameContentType] = []string{responseContentType}
} else if len(fileInfo.MIMEType) > 0 {
w.Header()[HeaderNameContentType] = []string{fileInfo.MIMEType}
} else {
w.Header()[HeaderNameContentType] = []string{HeaderValueTypeStream}
}
if len(responseContentDisposition) > 0 {
w.Header()[HeaderNameContentDisposition] = []string{responseContentDisposition}
} else if len(fileInfo.Disposition) > 0 {
w.Header()[HeaderNameContentDisposition] = []string{fileInfo.Disposition}
}
if len(responseCacheControl) > 0 {
w.Header()[HeaderNameCacheControl] = []string{responseCacheControl}
} else if len(fileInfo.CacheControl) > 0 {
w.Header()[HeaderNameCacheControl] = []string{fileInfo.CacheControl}
}
if len(responseExpires) > 0 {
w.Header()[HeaderNameExpires] = []string{responseExpires}
} else if len(fileInfo.Expires) > 0 {
w.Header()[HeaderNameExpires] = []string{fileInfo.Expires}
}
//check request is whether contain param : partNumber
partNumber := r.URL.Query().Get(ParamPartNumber)
if len(partNumber) > 0 && fileInfo.Size >= MinParallelDownloadFileSize {
partNumberInt, err := strconv.ParseUint(partNumber, 10, 64)
if err != nil {
log.LogErrorf("getObjectHandler: parse param partNumber(%s) fail: requestID(%v) err(%v)", partNumber, GetRequestID(r), err)
errorCode = InvalidArgument
return
}
partSize, partCount, rangeLower, rangeUpper, err = parsePartInfo(partNumberInt, uint64(fileInfo.Size))
log.LogDebugf("getObjectHandler: parsed partSize(%d), partCount(%d), rangeLower(%d), rangeUpper(%d)", partSize, partCount, rangeLower, rangeUpper)
if err != nil {
errorCode = InternalErrorCode(err)
return
}
if partNumberInt > partCount {
log.LogErrorf("getObjectHandler: param partNumber(%d) is more then partCount{%d}: requestID(%v)", partNumberInt, partCount, GetRequestID(r))
errorCode = NoSuchKey
return
}
// Header : Accept-Range, Content-Length, Content-Range, ETag, x-amz-mp-parts-count
w.Header()[HeaderNameContentLength] = []string{strconv.Itoa(int(partSize))}
w.Header()[HeaderNameContentRange] = []string{fmt.Sprintf("bytes %d-%d/%d", rangeLower, rangeUpper, fileInfo.Size)}
w.Header()[HeaderNameXAmzDownloadPartCount] = []string{strconv.Itoa(int(partCount))}
if len(fileInfo.ETag) > 0 && !strings.Contains(fileInfo.ETag, "-") {
w.Header()[HeaderNameETag] = []string{fmt.Sprintf("%s-%d", fileInfo.ETag, partCount)}
}
} else {
w.Header()[HeaderNameContentLength] = []string{strconv.FormatUint(contentLength, 10)}
if len(fileInfo.ETag) > 0 {
w.Header()[HeaderNameETag] = []string{wrapUnescapedQuot(fileInfo.ETag)}
}
if isRangeRead {
w.Header()[HeaderNameContentRange] = []string{fmt.Sprintf("bytes %d-%d/%d", rangeLower, rangeUpper, fileInfo.Size)}
}
}
// User-defined metadata
for name, value := range fileInfo.Metadata {
w.Header()[HeaderNameXAmzMetaPrefix+name] = []string{value}
}
if fileInfo.Mode.IsDir() {
return
}
// get object content
var offset = rangeLower
var size = uint64(fileInfo.Size)
if isRangeRead || len(partNumber) > 0 {
size = rangeUpper - rangeLower + 1
}
err = vol.ReadFile(param.Object(), w, offset, size)
if err == syscall.ENOENT {
errorCode = NoSuchKey
return
}
if err != nil {
log.LogErrorf("getObjectHandler: read from Volume fail: requestId(%v) volume(%v) path(%v) offset(%v) size(%v) err(%v)",
GetRequestID(r), param.Bucket(), param.Object(), offset, size, err)
return
}
log.LogDebugf("getObjectHandler: Volume read file: requestID(%v) Volume(%v) path(%v) offset(%v) size(%v)",
GetRequestID(r), param.Bucket(), param.Object(), offset, size)
return
}
// Head object
// API reference: https://docs.aws.amazon.com/AmazonS3/latest/API/API_HeadObject.html
func (o *ObjectNode) headObjectHandler(w http.ResponseWriter, r *http.Request) {
var (
err error
errorCode *ErrorCode
)
defer func() {
if errorCode != nil {
_ = errorCode.ServeResponse(w, r)
return
}
}()
// check args
var param = ParseRequestParam(r)
if param.Bucket() == "" {
errorCode = InvalidBucketName
return
}
if param.Object() == "" {
errorCode = InvalidKey
return
}
var vol *Volume
if vol, err = o.vm.Volume(param.Bucket()); err != nil {
log.LogErrorf("headObjectHandler: load volume fail: requestID(%v) err(%v)",
GetRequestID(r), err)
errorCode = NoSuchBucket
return
}
// get object meta
var fileInfo *FSFileInfo
fileInfo, err = vol.ObjectMeta(param.Object())
if err == syscall.ENOENT {
errorCode = NoSuchKey
return
}
if err != nil {
log.LogErrorf("headObjectHandler: get file meta fail: requestId(%v) volume(%v) path(%v)err(%v)",
GetRequestID(r), vol.Name(), param.Object(), err)
errorCode = InternalErrorCode(err)
return
}
// parse request header
match := r.Header.Get(HeaderNameIfMatch)
noneMatch := r.Header.Get(HeaderNameIfNoneMatch)
modified := r.Header.Get(HeaderNameIfModifiedSince)
unmodified := r.Header.Get(HeaderNameIfUnmodifiedSince)
// Checking precondition: If-Match
// Reference: https://docs.aws.amazon.com/AmazonS3/latest/API/API_HeadObject.html#API_HeadObject_RequestSyntax
if match != "" {
if matchEag := strings.Trim(match, "\""); matchEag != fileInfo.ETag {
log.LogDebugf("headObjectHandler: object eTag(%s) not match If-Match header value(%s), requestId(%v)",
fileInfo.ETag, matchEag, GetRequestID(r))
errorCode = PreconditionFailed
return
}
}
// Checking precondition: If-Modified-Since
// Reference: https://docs.aws.amazon.com/AmazonS3/latest/API/API_HeadObject.html#API_HeadObject_RequestSyntax
if modified != "" {
fileModTime := fileInfo.ModifyTime
modifiedTime, err := parseTimeRFC1123(modified)
if err != nil {
log.LogDebugf("headObjectHandler: parse RFC1123 time fail: requestID(%v) err(%v)", GetRequestID(r), err)
errorCode = InvalidArgument
return
}
if !fileModTime.After(modifiedTime) {
log.LogDebugf("headObjectHandler: file modified time not after than specified time: requestID(%v)", GetRequestID(r))
errorCode = NotModified
return
}
}
// Checking precondition: If-None-Match
// Reference: https://docs.aws.amazon.com/AmazonS3/latest/API/API_HeadObject.html#API_HeadObject_RequestSyntax
if noneMatch != "" {
if noneMatchEtag := strings.Trim(noneMatch, "\""); noneMatchEtag == fileInfo.ETag {
log.LogDebugf("headObjectHandler: object eTag(%s) match If-None-Match header value(%s), requestId(%v)",
fileInfo.ETag, noneMatchEtag, GetRequestID(r))
errorCode = NotModified
return
}
}
// Checking precondition: If-Unmodified-Since
// Reference: https://docs.aws.amazon.com/AmazonS3/latest/API/API_HeadObject.html#API_HeadObject_RequestSyntax
if unmodified != "" && match == "" {
fileModTime := fileInfo.ModifyTime
modifiedTime, err := parseTimeRFC1123(unmodified)
if err != nil {
log.LogDebugf("headObjectHandler: parse RFC1123 time fail: requestID(%v) err(%v)", GetRequestID(r), err)
errorCode = InvalidArgument
return
}
if fileModTime.After(modifiedTime) {
log.LogDebugf("headObjectHandler: file modified time after than specified time: requestID(%v)", GetRequestID(r))
errorCode = PreconditionFailed
return
}
}
// set response header
w.Header()[HeaderNameAcceptRange] = []string{HeaderValueAcceptRange}
w.Header()[HeaderNameLastModified] = []string{formatTimeRFC1123(fileInfo.ModifyTime)}
w.Header()[HeaderNameContentMD5] = []string{EmptyContentMD5String}
if len(fileInfo.MIMEType) > 0 {
w.Header()[HeaderNameContentType] = []string{fileInfo.MIMEType}
} else {
w.Header()[HeaderNameContentType] = []string{HeaderValueTypeStream}
}
if len(fileInfo.Disposition) > 0 {
w.Header()[HeaderNameContentDisposition] = []string{fileInfo.Disposition}
}
if len(fileInfo.CacheControl) > 0 {
w.Header()[HeaderNameCacheControl] = []string{fileInfo.CacheControl}
}
if len(fileInfo.Expires) > 0 {
w.Header()[HeaderNameExpires] = []string{fileInfo.Expires}
}
// check request is whether contain param : partNumber
partNumber := r.URL.Query().Get(ParamPartNumber)
if len(partNumber) > 0 && fileInfo.Size >= MinParallelDownloadFileSize {
partNumberInt, err := strconv.ParseUint(partNumber, 10, 64)
if err != nil {
log.LogErrorf("headObjectHandler: parse param partNumber(%s) fail: requestID(%v) err(%v)", partNumber, GetRequestID(r), err)
errorCode = InvalidArgument
return
}
partSize, partCount, rangeLower, rangeUpper, err := parsePartInfo(partNumberInt, uint64(fileInfo.Size))
log.LogDebugf("headObjectHandler: parsed partSize(%d), partCount(%d), rangeLower(%d), rangeUpper(%d)", partSize, partCount, rangeLower, rangeUpper)
if err != nil {
errorCode = InternalErrorCode(err)
return
}
if partNumberInt > partCount {
log.LogErrorf("headObjectHandler: param partNumber(%d) is more then partCount(%d): requestID(%v)", partNumberInt, partCount, GetRequestID(r))
errorCode = NoSuchKey
return
}
w.Header()[HeaderNameContentLength] = []string{strconv.Itoa(int(partSize))}
w.Header()[HeaderNameContentRange] = []string{fmt.Sprintf("bytes %d-%d/%d", rangeLower, rangeUpper, fileInfo.Size)}
w.Header()[HeaderNameXAmzDownloadPartCount] = []string{strconv.Itoa(int(partCount))}
if len(fileInfo.ETag) > 0 && !strings.Contains(fileInfo.ETag, "-") {
w.Header()[HeaderNameETag] = []string{fmt.Sprintf("%s-%d", fileInfo.ETag, partCount)}
}
} else {
w.Header()[HeaderNameContentLength] = []string{strconv.Itoa(int(fileInfo.Size))}
if len(fileInfo.ETag) > 0 {
w.Header()[HeaderNameETag] = []string{wrapUnescapedQuot(fileInfo.ETag)}
}
}
// User-defined metadata
for name, value := range fileInfo.Metadata {
w.Header()[HeaderNameXAmzMetaPrefix+name] = []string{value}
}
return
}
// Delete objects (multiple objects)
// API reference: https://docs.aws.amazon.com/AmazonS3/latest/API/API_DeleteObjects.html
func (o *ObjectNode) deleteObjectsHandler(w http.ResponseWriter, r *http.Request) {
var (
err error
errorCode *ErrorCode
)
defer func() {
if errorCode != nil {
_ = errorCode.ServeResponse(w, r)
return
}
}()
var param = ParseRequestParam(r)
if param.Bucket() == "" {
errorCode = InvalidBucketName
return
}
var vol *Volume
if vol, err = o.vm.Volume(param.Bucket()); err != nil {
log.LogErrorf("deleteObjectsHandler: load volume fail: requestID(%v) err(%v)", GetRequestID(r), err)
errorCode = NoSuchBucket
return
}
var bytes []byte
bytes, err = ioutil.ReadAll(r.Body)
if err != nil && err != io.EOF {
log.LogErrorf("deleteObjectsHandler: read request body fail: requestID(%v) err(%v)", GetRequestID(r), err)
errorCode = InternalErrorCode(err)
return
}
deleteReq := DeleteRequest{}
err = UnmarshalXMLEntity(bytes, &deleteReq)
if err != nil {
log.LogErrorf("deleteObjectsHandler: unmarshal xml fail: requestID(%v) err(%v)",
GetRequestID(r), err)
errorCode = InvalidArgument
return
}
if len(deleteReq.Objects) <= 0 {
log.LogDebugf("deleteObjectsHandler: non objects found in request: requestID(%v)", GetRequestID(r))
errorCode = InvalidArgument
return
}
var (
deletedObjects = make([]Deleted, 0, len(deleteReq.Objects))
deletedErrors = make([]Error, 0)
)
// Sort the key values in reverse order.
// The purpose of this is to delete the child leaf first and then the parent node.
// Source:
// 0. backup/
// 1. backup/20200101.bak
// 2. backup/20200102.bak
// Result:
// 0. backup/20200102.bak
// 1. backup/20200101.bak
// 2. backup/
sort.SliceStable(deleteReq.Objects, func(i, j int) bool {
return deleteReq.Objects[i].Key > deleteReq.Objects[j].Key
})
var objectKeys = make([]string, 0, len(deleteReq.Objects))
for _, object := range deleteReq.Objects {
objectKeys = append(objectKeys, object.Key)
err = vol.DeletePath(object.Key)
log.LogWarnf("deleteObjectsHandler: delete: requestID(%v) volume(%v) path(%v)",
GetRequestID(r), vol.Name(), object.Key)
if err != nil {
deletedErrors = append(deletedErrors, Error{Key: object.Key, Message: err.Error()})
log.LogErrorf("deleteObjectsHandler: delete object failed: requestID(%v) volume(%v) path(%v) err(%v)",
GetRequestID(r), vol.Name(), object.Key, err)
} else {
deletedObjects = append(deletedObjects, Deleted{Key: object.Key})
log.LogDebugf("deleteObjectsHandler: delete object success: requestID(%v) volume(%v) path(%v)", GetRequestID(r),
vol.Name(), object.Key)
}
}
// Audit bulk delete behavior
log.LogInfof("Audit: delete multiple objects: requestID(%v) remote(%v) volume(%v) objects(%v)",
GetRequestID(r), getRequestIP(r), vol.Name(), strings.Join(objectKeys, ","))
deleteResult := DeleteResult{
Deleted: deletedObjects,
Error: deletedErrors,
}
log.LogDebugf("deleteObjectsHandler: delete objects: deletes(%v) errors(%v)",
len(deleteResult.Deleted), len(deleteResult.Error))
var bytesRes []byte
var marshalError error
if bytesRes, marshalError = MarshalXMLEntity(deleteResult); marshalError != nil {
log.LogErrorf("deleteObjectsHandler: marshal xml entity fail: requestID(%v) err(%v)", GetRequestID(r), err)
errorCode = InternalErrorCode(err)
return
}
// set response header
w.Header()[HeaderNameContentType] = []string{HeaderValueContentTypeXML}
w.Header()[HeaderNameContentLength] = []string{strconv.Itoa(len(bytesRes))}
if _, err = w.Write(bytesRes); err != nil {
log.LogErrorf("deleteObjectsHandler: write response body fail: requestID(%v) err(%v)", GetRequestID(r), err)
}
return
}
func parseCopySourceInfo(r *http.Request) (sourceBucket, sourceObject string) {
var copySource = r.Header.Get(HeaderNameXAmzCopySource)
if strings.HasPrefix(copySource, "/") {
copySource = copySource[1:]
}
position := strings.Index(copySource, "/")
var bucket, object string
if position >= 0 {
bucket = copySource[:position]
if position+1 <= len(copySource) {
object = copySource[position+1:]
}
}
sourceBucket = bucket
sourceObject = object
return
}
// Copy object
// API reference: https://docs.aws.amazon.com/AmazonS3/latest/API/API_CopyObject.html .
func (o *ObjectNode) copyObjectHandler(w http.ResponseWriter, r *http.Request) {
var err error
var errorCode *ErrorCode
defer func() {
if errorCode != nil {
_ = errorCode.ServeResponse(w, r)
return
}
}()
var param = ParseRequestParam(r)
if param.Bucket() == "" {
errorCode = InvalidBucketName
return
}
if param.Object() == "" {
errorCode = InvalidKey
return
}
var vol *Volume
if vol, err = o.getVol(param.Bucket()); err != nil {
log.LogErrorf("copyObjectHandler: load volume fail: requestID(%v) err(%v)",
getRequestIP(r), err)
errorCode = NoSuchBucket
return
}
// Checking user-defined metadata
var metadata = ParseUserDefinedMetadata(r.Header)
// client can reset these system metadata: Content-Type, Content-Disposition
contentType := r.Header.Get(HeaderNameContentType)
contentDisposition := r.Header.Get(HeaderNameContentDisposition)
cacheControl := r.Header.Get(HeaderNameCacheControl)
if len(cacheControl) > 0 && !ValidateCacheControl(cacheControl) {
errorCode = InvalidCacheArgument
return
}
expires := r.Header.Get(HeaderNameExpires)
if len(expires) > 0 && !ValidateCacheExpires(expires) {
errorCode = InvalidCacheArgument
return
}
// metadata directive, direct object node use source file metadata or recreate metadata for target file
metadataDirective := r.Header.Get(HeaderNameXAmzMetadataDirective)
// metadata directive default value is COPY
if len(metadataDirective) == 0 {
metadataDirective = MetadataDirectiveCopy
}
var opt = &PutFileOption{
MIMEType: contentType,
Disposition: contentDisposition,
Metadata: metadata,
CacheControl: cacheControl,
Expires: expires,
}
sourceBucket, sourceObject := parseCopySourceInfo(r)
// check permission, must have read permission to source bucket
var userInfo *proto.UserInfo
if userInfo, err = o.getUserInfoByAccessKey(param.AccessKey()); err != nil {
log.LogErrorf("copyObjectHandler: get user info from master error: requestID(%v), accessKey(%v), err(%v)",
GetRequestID(r), param.AccessKey(), err)
errorCode = InternalErrorCode(err)
return
}
subdir := strings.TrimRight(param.Object(), "/")
if subdir == "" {
subdir = r.URL.Query().Get(ParamPrefix)
}
if !userInfo.Policy.IsAuthorized(sourceBucket, subdir, proto.OSSCopyObjectAction) {
log.LogErrorf("copyObjectHandler: no permission to copy from source bucket, requestID(%v), source bucket(%v), source file(%v), target bucket(%v), target file(%v)",
GetRequestID(r), sourceBucket, sourceObject, param.bucket, param.object)
errorCode = AccessDenied
return
}
// get object meta
var fileInfo *FSFileInfo
fileInfo, err = vol.ObjectMeta(sourceObject)
if err != nil {
if err == syscall.ENOENT {
errorCode = NoSuchKey
return
}
log.LogErrorf("copyObjectHandler: volume get file info fail: requestID(%v) err(%v)", GetRequestID(r), err)
errorCode = InternalErrorCode(err)
return
}
// get header
copyMatch := r.Header.Get(HeaderNameXAmzCopyMatch)
noneMatch := r.Header.Get(HeaderNameXAmzCopyNoneMatch)
modified := r.Header.Get(HeaderNameXAmzCopyModified)
unModified := r.Header.Get(HeaderNameXAmzCopyUnModified)
// response 412
if modified != "" {
fileModTime := fileInfo.ModifyTime
modifiedTime, err := parseTimeRFC1123(modified)
if err != nil {
log.LogErrorf("copyObjectHandler: parse RFC1123 time fail: requestID(%v) err(%v)", GetRequestID(r), err)
errorCode = InvalidArgument
return
}
if fileModTime.Before(modifiedTime) {
log.LogInfof("copyObjectHandler: file modified time not after than specified time: requestID(%v)", GetRequestID(r))
errorCode = PreconditionFailed
return
}
}
if unModified != "" {
fileModTime := fileInfo.ModifyTime
unmodifiedTime, err := parseTimeRFC1123(unModified)
if err != nil {
log.LogErrorf("copyObjectHandler: parse RFC1123 time fail: requestID(%v) err(%v)", GetRequestID(r), err)
errorCode = InvalidArgument
return
}
if fileModTime.After(unmodifiedTime) {
log.LogInfof("copyObjectHandler: file modified time not before than specified time: requestID(%v)", GetRequestID(r))
errorCode = PreconditionFailed
return
}
}
if copyMatch != "" && fileInfo.ETag != copyMatch {
log.LogInfof("copyObjectHandler: eTag mismatched with specified: requestID(%v)", GetRequestID(r))
errorCode = PreconditionFailed
return
}
if noneMatch != "" && fileInfo.ETag == noneMatch {
log.LogInfof("copyObjectHandler: eTag same with specified: requestID(%v)", GetRequestID(r))
errorCode = PreconditionFailed
return
}
// open source object stream
var sourceVol *Volume
if sourceVol, err = o.getVol(sourceBucket); err != nil {
log.LogErrorf("copyObjectHandler: load source volume fail: vol(%v) requestID(%v) err(%v)",
sourceBucket, getRequestIP(r), err)
errorCode = NoSuchBucket
return
}
fsFileInfo, err := vol.CopyFile(sourceVol, sourceObject, param.Object(), metadataDirective, opt)
if err != nil && err != syscall.EINVAL && err != syscall.EFBIG {
log.LogErrorf("copyObjectHandler: Volume copy file fail: requestID(%v) Volume(%v) source(%v) target(%v) err(%v)",
GetRequestID(r), param.Bucket(), sourceObject, param.Object(), err)
errorCode = InternalErrorCode(err)
return
}
if err == syscall.EINVAL {
log.LogErrorf("copyObjectHandler: target file existed, and mode conflict: requestID(%v) Volume(%v) source(%v) target(%v) err(%v)",
GetRequestID(r), param.Bucket(), sourceObject, param.Object(), err)
errorCode = ObjectModeConflict
return
}
if err == syscall.EFBIG {
log.LogErrorf("copyObjectHandler: source file size greater than 5GB: requestID(%v) Volume(%v) source(%v) target(%v) err(%v)",
GetRequestID(r), param.Bucket(), sourceObject, param.Object(), err)
errorCode = CopySourceSizeTooLarge
return
}
copyResult := CopyResult{
ETag: fsFileInfo.ETag,
LastModified: formatTimeISO(fsFileInfo.ModifyTime),
}
var bytes []byte
if bytes, err = MarshalXMLEntity(copyResult); err != nil {
log.LogErrorf("copyObjectHandler: marshal xml entity fail: requestID(%v) err(%v)", GetRequestID(r), err)
errorCode = InternalErrorCode(err)
return
}
// set response header
w.Header()[HeaderNameContentType] = []string{HeaderValueContentTypeXML}
w.Header()[HeaderNameContentLength] = []string{strconv.Itoa(len(bytes))}
_, _ = w.Write(bytes)
return
}
// List objects v1
// API reference: https://docs.aws.amazon.com/AmazonS3/latest/API/API_ListObjects.html
func (o *ObjectNode) getBucketV1Handler(w http.ResponseWriter, r *http.Request) {
var err error
var errorCode *ErrorCode
defer func() {
if errorCode != nil {
_ = errorCode.ServeResponse(w, r)
return
}
}()
var param = ParseRequestParam(r)
if param.Bucket() == "" {
errorCode = InvalidBucketName
return
}
var vol *Volume
if vol, err = o.getVol(param.Bucket()); err != nil {
log.LogErrorf("getBucketV1Handler: load volume fail: requestID(%v) volume(%v) err(%v)",
GetRequestID(r), param.Bucket(), err)
errorCode = NoSuchBucket
return
}
// get options
marker := r.URL.Query().Get(ParamMarker)
prefix := r.URL.Query().Get(ParamPrefix)
maxKeys := r.URL.Query().Get(ParamMaxKeys)
delimiter := r.URL.Query().Get(ParamPartDelimiter)
encodingType := r.URL.Query().Get(ParamEncodingType)
var maxKeysInt uint64
if maxKeys != "" {
maxKeysInt, err = strconv.ParseUint(maxKeys, 10, 16)
if err != nil {
log.LogErrorf("getBucketV1Handler: parse max key fail, requestID(%v) err(%v)", GetRequestID(r), err)
errorCode = InvalidArgument
return
}
if maxKeysInt > MaxKeys {
maxKeysInt = MaxKeys
}
} else {
maxKeysInt = uint64(MaxKeys)
}
// Validate encoding type option
if encodingType != "" && encodingType != "url" {
errorCode = InvalidArgument
return
}
var option = &ListFilesV1Option{
Prefix: prefix,
Delimiter: delimiter,
Marker: marker,
MaxKeys: maxKeysInt,
}
var result *ListFilesV1Result
result, err = vol.ListFilesV1(option)
if err != nil {
log.LogErrorf("getBucketV1Handler: list file fail: requestID(%v) volume(%v) err(%v)",
getRequestIP(r), vol.name, err)
errorCode = InvalidArgument
return
}
// get owner
var bucketOwner = NewBucketOwner(vol)
var contents = make([]*Content, 0, len(result.Files))
for _, file := range result.Files {
if file.Mode == 0 {
// Invalid file mode, which means that the inode of the file may not exist.
// Record and filter out the file.
log.LogWarnf("getBucketV2Handler: invalid file found: volume(%v) path(%v) inode(%v)",
vol.Name(), file.Path, file.Inode)
continue
}
content := &Content{
Key: encodeKey(file.Path, encodingType),
LastModified: formatTimeISO(file.ModifyTime),
ETag: wrapUnescapedQuot(file.ETag),
Size: int(file.Size),
StorageClass: StorageClassStandard,
Owner: bucketOwner,
}
contents = append(contents, content)
}
var commonPrefixes = make([]*CommonPrefix, 0)
for _, prefix := range result.CommonPrefixes {
commonPrefix := &CommonPrefix{
Prefix: prefix,
}
commonPrefixes = append(commonPrefixes, commonPrefix)
}
listBucketResult := &ListBucketResult{
Bucket: param.Bucket(),
Prefix: prefix,
Marker: marker,
MaxKeys: int(maxKeysInt),
Delimiter: delimiter,
IsTruncated: result.Truncated,
NextMarker: result.NextMarker,
Contents: contents,
CommonPrefixes: commonPrefixes,
}
var bytes []byte
var marshalError error
if bytes, marshalError = MarshalXMLEntity(listBucketResult); marshalError != nil {
log.LogErrorf("getBucketV1Handler: marshal result fail, requestID(%v) err(%v)", GetRequestID(r), err)
errorCode = InvalidArgument
return
}
// set response header
w.Header()[HeaderNameContentType] = []string{HeaderValueContentTypeXML}
w.Header()[HeaderNameContentLength] = []string{strconv.Itoa(len(bytes))}
_, _ = w.Write(bytes)
return
}
// List objects version 2
// API reference: https://docs.aws.amazon.com/AmazonS3/latest/API/API_ListObjectsV2.html
func (o *ObjectNode) getBucketV2Handler(w http.ResponseWriter, r *http.Request) {
var err error
var errorCode *ErrorCode
defer func() {
if errorCode != nil {
_ = errorCode.ServeResponse(w, r)
return
}
}()
var param = ParseRequestParam(r)
if param.Bucket() == "" {
errorCode = InvalidBucketName
return
}
var vol *Volume
if vol, err = o.getVol(param.Bucket()); err != nil {
log.LogErrorf("getBucketV2Handler: load volume fail: requestID(%v) volume(%v) err(%v)",
GetRequestID(r), param.Bucket(), err)
errorCode = NoSuchBucket
return
}
// get options
prefix := r.URL.Query().Get(ParamPrefix)
maxKeys := r.URL.Query().Get(ParamMaxKeys)
delimiter := r.URL.Query().Get(ParamPartDelimiter)
contToken := r.URL.Query().Get(ParamContToken)
fetchOwner := r.URL.Query().Get(ParamFetchOwner)
startAfter := r.URL.Query().Get(ParamStartAfter)
encodingType := r.URL.Query().Get(ParamEncodingType)
var maxKeysInt uint64
if maxKeys != "" {