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storage.go
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storage.go
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package imagex
import (
"context"
"encoding/base64"
"encoding/json"
"fmt"
"io"
"io/ioutil"
"net/url"
"strconv"
"strings"
"sync"
"time"
"github.com/avast/retry-go"
"github.com/volcengine/volc-sdk-golang/base"
)
const (
ResourceServiceIdTRN = "trn:ImageX:*:*:ServiceId/%s"
ResourceStoreKeyTRN = "trn:ImageX:*:*:StoreKeys/%s"
MinChunkSize = 1024 * 1024 * 20
LargeFileSize = 1024 * 1024 * 1024
UploadRoutines = 4
)
// ApplyImageUpload 获取图片上传地址
func (c *Imagex) ApplyUploadImage(params *ApplyUploadImageParam) (*ApplyUploadImageResult, error) {
query := url.Values{}
query.Add("ServiceId", params.ServiceId)
if params.SessionKey != "" {
query.Add("SessionKey", params.SessionKey)
}
if params.UploadNum > 0 {
query.Add("UploadNum", strconv.Itoa(params.UploadNum))
}
for _, key := range params.StoreKeys {
query.Add("StoreKeys", key)
}
query.Add("Overwrite", strconv.FormatBool(params.Overwrite))
respBody, _, err := c.Client.Query("ApplyImageUpload", query)
if err != nil {
return nil, fmt.Errorf("ApplyUploadImage: fail to do request, %v", err)
}
result := new(ApplyUploadImageResult)
if err := unmarshalResultInto(respBody, result); err != nil {
return nil, fmt.Errorf("ApplyUploadImage: fail to unmarshal response, %v", err)
}
return result, nil
}
// CommitImageUpload 图片上传完成上报
func (c *Imagex) CommitUploadImage(params *CommitUploadImageParam) (*CommitUploadImageResult, error) {
query := url.Values{}
query.Add("ServiceId", params.ServiceId)
query.Add("SkipMeta", fmt.Sprintf("%v", params.SkipMeta))
bts, err := json.Marshal(params)
if err != nil {
return nil, fmt.Errorf("CommitUploadImage: fail to marshal request, %v", err)
}
respBody, _, err := c.Client.Json("CommitImageUpload", query, string(bts))
if err != nil {
return nil, fmt.Errorf("CommitUploadImage: fail to do request, %v", err)
}
result := new(CommitUploadImageResult)
if err := unmarshalResultInto(respBody, result); err != nil {
return nil, err
}
return result, nil
}
func (c *Imagex) segmentedUpload(set *uploadTaskSet, item *uploadTaskElement) error {
if item.size <= MinChunkSize {
//goland:noinspection GoDeprecation
bts, err := ioutil.ReadAll(item.content)
if err != nil {
return err
}
err = c.directUpload(item.ctx, item.host, item.idx, set, item.info, bts)
if err != nil {
return err
}
} else {
arg := &segmentedUploadParam{
host: item.host,
StoreInfo: item.info,
content: item.content,
size: item.size,
isLargeFile: item.size > LargeFileSize,
idx: item.idx,
set: set,
}
err := arg.chunkUpload()
if err != nil {
return err
}
}
set.result[item.idx].success = true
return nil
}
// 上传图片
// 请确保 content 长度和 size 长度一致
func (c *Imagex) SegmentedUploadImages(ctx context.Context, params *ApplyUploadImageParam, content []io.Reader, size []int64) (*CommitUploadImageResult, error) {
if len(content) != len(size) {
return nil, fmt.Errorf("expect len(size) == len(content), but len(size) = %d, len(content) = %d", len(size), len(content))
}
params.UploadNum = len(content)
for idx, item := range size {
if item == 0 {
return nil, fmt.Errorf("size[%d] is zero", idx)
}
}
// 1. apply
applyResp, err := c.ApplyUploadImage(params)
if err != nil {
return nil, err
}
uploadAddr := applyResp.UploadAddress
if len(uploadAddr.UploadHosts) == 0 {
return nil, fmt.Errorf("UploadImages: no upload host found, request id %s", applyResp.RequestId)
}
if len(uploadAddr.StoreInfos) != params.UploadNum {
return nil, fmt.Errorf("UploadImages: store infos num %d != upload num %d, request id %s",
len(uploadAddr.StoreInfos), params.UploadNum, applyResp.RequestId)
}
// 2. upload
host := uploadAddr.UploadHosts[0]
wg := &sync.WaitGroup{}
uploadTaskSet := &uploadTaskSet{
ctx: ctx,
host: host,
info: uploadAddr.StoreInfos,
content: content,
size: size,
}
uploadTaskSet.init()
for i := 0; i < UploadRoutines; i++ {
wg.Add(1)
go func() {
defer func() {
recover()
wg.Done()
}()
for item := range uploadTaskSet.taskChan {
uploadTaskSet.result[item.idx] = uploadTaskResult{
uri: item.info.StoreUri,
}
err := c.segmentedUpload(uploadTaskSet, item)
if err == nil {
uploadTaskSet.result[item.idx].success = true
uploadTaskSet.addSuccess(item.info.StoreUri)
} else {
uploadTaskSet.result[item.idx].errMsg = err.Error()
}
}
}()
}
wg.Wait()
if len(uploadTaskSet.successOids) == 0 || params.SkipCommit {
return &CommitUploadImageResult{
Results: uploadTaskSet.GetResult(),
}, nil
}
// 3. commit
commitParams := &CommitUploadImageParam{
ServiceId: params.ServiceId,
SessionKey: uploadAddr.SessionKey,
SuccessOids: uploadTaskSet.successOids,
SkipMeta: params.SkipMeta,
}
if params.CommitParam != nil {
commitParams.Functions = params.CommitParam.Functions
}
commitResp, err := c.CommitUploadImage(commitParams)
if err != nil {
return nil, err
}
uploadTaskSet.fill(commitResp)
return commitResp, nil
}
// 上传图片
func (c *Imagex) UploadImages(params *ApplyUploadImageParam, images [][]byte) (*CommitUploadImageResult, error) {
params.UploadNum = len(images)
// 1. apply
applyResp, err := c.ApplyUploadImage(params)
if err != nil {
return nil, err
}
uploadAddr := applyResp.UploadAddress
if len(uploadAddr.UploadHosts) == 0 {
return nil, fmt.Errorf("UploadImages: no upload host found, request id %s", applyResp.RequestId)
} else if len(uploadAddr.StoreInfos) != params.UploadNum {
return nil, fmt.Errorf("UploadImages: store infos num %d != upload num %d, request id %s",
len(uploadAddr.StoreInfos), params.UploadNum, applyResp.RequestId)
}
// 2. upload
host := uploadAddr.UploadHosts[0]
uploadTaskSet := &uploadTaskSet{
ctx: context.Background(),
host: host,
info: uploadAddr.StoreInfos,
content: make([]io.Reader, 0),
size: make([]int64, 0),
}
uploadTaskSet.init()
for i, image := range images {
imageCopy := image
info := uploadAddr.StoreInfos[i]
idx := i
uploadTaskSet.result[idx] = uploadTaskResult{
uri: info.StoreUri,
}
err = retry.Do(func() error {
ctx, cancel := context.WithTimeout(context.Background(), c.ServiceInfo.Timeout)
defer cancel()
return c.directUpload(ctx, host, idx, uploadTaskSet, info, imageCopy)
}, retry.Attempts(2))
if err != nil {
uploadTaskSet.result[idx].errMsg = err.Error()
} else {
uploadTaskSet.result[idx].success = true
uploadTaskSet.result[idx].errMsg = ""
uploadTaskSet.result[idx].putErr = nil
uploadTaskSet.addSuccess(info.StoreUri)
}
}
if len(uploadTaskSet.successOids) == 0 || params.SkipCommit {
return &CommitUploadImageResult{
Results: uploadTaskSet.GetResult(),
}, nil
}
// 3. commit
commitParams := &CommitUploadImageParam{
ServiceId: params.ServiceId,
SessionKey: uploadAddr.SessionKey,
SuccessOids: uploadTaskSet.successOids,
SkipMeta: params.SkipMeta,
}
if params.CommitParam != nil {
commitParams.Functions = params.CommitParam.Functions
}
commitResp, err := c.CommitUploadImage(commitParams)
if err != nil {
return nil, err
}
uploadTaskSet.fill(commitResp)
return commitResp, nil
}
// 获取临时上传凭证
func (c *Imagex) GetUploadAuthToken(query url.Values) (string, error) {
ret := map[string]string{
"Version": "v1",
}
applyUploadToken, err := c.Client.GetSignUrl("ApplyImageUpload", query)
if err != nil {
return "", fmt.Errorf("GetUploadAuthToken: fail to get apply token, %v", err)
}
ret["ApplyUploadToken"] = applyUploadToken
commitUploadToken, err := c.Client.GetSignUrl("CommitImageUpload", query)
if err != nil {
return "", fmt.Errorf("GetUploadAuthToken: fail to get commit token, %v", err)
}
ret["CommitUploadToken"] = commitUploadToken
b, err := json.Marshal(ret)
if err != nil {
return "", fmt.Errorf("GetUploadAuthToken: fail to marshal token, %v", err)
}
token := strings.ReplaceAll(string(b), "\\u0026", "&")
return base64.StdEncoding.EncodeToString([]byte(token)), nil
}
type UploadAuthOpt func(option *uploadAuthOption)
type uploadAuthOption struct {
keyPtn string
conditions map[string]string
}
func WithUploadKeyPtn(ptn string) UploadAuthOpt {
return func(o *uploadAuthOption) {
o.keyPtn = ptn
}
}
func WithUploadOverwrite(overwrite bool) UploadAuthOpt {
return func(op *uploadAuthOption) {
op.conditions["UploadOverwrite"] = strconv.FormatBool(overwrite)
}
}
func WithUploadPolicy(policy *UploadPolicy) UploadAuthOpt {
res, _ := json.Marshal(policy)
return func(op *uploadAuthOption) {
op.conditions["UploadPolicy"] = string(res)
}
}
// 获取上传临时密钥
func (c *Imagex) GetUploadAuth(serviceIds []string, opt ...UploadAuthOpt) (*base.SecurityToken2, error) {
return c.GetUploadAuthWithExpire(serviceIds, time.Hour, opt...)
}
// 获取上传临时密钥
func (c *Imagex) GetUploadAuthWithExpire(serviceIds []string, expire time.Duration, opt ...UploadAuthOpt) (*base.SecurityToken2, error) {
serviceIdRes := make([]string, 0)
if len(serviceIds) == 0 {
serviceIdRes = append(serviceIdRes, fmt.Sprintf(ResourceServiceIdTRN, "*"))
} else {
for _, sid := range serviceIds {
serviceIdRes = append(serviceIdRes, fmt.Sprintf(ResourceServiceIdTRN, sid))
}
}
op := &uploadAuthOption{
conditions: map[string]string{},
}
for _, o := range opt {
o(op)
}
storeKeyRes := []string{
fmt.Sprintf(ResourceStoreKeyTRN, op.keyPtn),
}
inlinePolicy := new(base.Policy)
inlinePolicy.Statement = append(inlinePolicy.Statement, base.NewAllowStatement([]string{
"ImageX:ApplyImageUpload",
}, append(serviceIdRes, storeKeyRes...)))
inlinePolicy.Statement = append(inlinePolicy.Statement, base.NewAllowStatement([]string{
"ImageX:CommitImageUpload",
}, serviceIdRes))
for k, v := range op.conditions {
inlinePolicy.Statement = append(inlinePolicy.Statement, base.NewAllowStatement([]string{k}, []string{v}))
}
return c.Client.SignSts2(inlinePolicy, expire)
}