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prepare.go
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prepare.go
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package baidupcs
import (
"bytes"
"fmt"
"github.com/iikira/BaiduPCS-Go/requester/multipartreader"
"github.com/json-iterator/go"
"io"
"net/http"
"net/http/cookiejar"
"strconv"
)
func handleRespClose(resp *http.Response) error {
if resp != nil {
return resp.Body.Close()
}
return nil
}
func handleRespStatusError(opreation string, resp *http.Response) (err error) {
if resp == nil {
return fmt.Errorf("resp is nil")
}
// http 响应错误处理
switch resp.StatusCode {
case 413: // Request Entity Too Large
// 上传的文件太大了
resp.Body.Close()
err = fmt.Errorf("%s, http 响应错误, %s", opreation, resp.Status)
return
}
return nil
}
// PrepareQuotaInfo 获取当前用户空间配额信息, 只返回服务器响应数据和错误信息
func (pcs *BaiduPCS) PrepareQuotaInfo() (dataReadCloser io.ReadCloser, err error) {
pcs.setPCSURL("quota", "info")
resp, err := pcs.client.Req("GET", pcs.url.String(), nil, nil)
if err != nil {
handleRespClose(resp)
return nil, fmt.Errorf("%s, 网络错误, %s", OperationQuotaInfo, err)
}
return resp.Body, nil
}
// PrepareFilesDirectoriesBatchMeta 获取多个文件/目录的元信息, 只返回服务器响应数据和错误信息
func (pcs *BaiduPCS) PrepareFilesDirectoriesBatchMeta(paths ...string) (dataReadCloser io.ReadCloser, err error) {
sendData, err := (&PathsListJSON{}).JSON(paths...)
if err != nil {
panic(OperationFilesDirectoriesBatchMeta + ", json 数据构造失败, " + err.Error())
}
pcs.setPCSURL("file", "meta")
// 表单上传
mr := multipartreader.NewMultipartReader()
mr.AddFormFeild("param", bytes.NewReader(sendData))
resp, err := pcs.client.Req("POST", pcs.url.String(), mr, nil)
if err != nil {
handleRespClose(resp)
return nil, fmt.Errorf("%s, 网络错误, %s", OperationFilesDirectoriesBatchMeta, err)
}
return resp.Body, nil
}
// PrepareFilesDirectoriesList 获取目录下的文件和目录列表, 可选是否递归, 只返回服务器响应数据和错误信息
func (pcs *BaiduPCS) PrepareFilesDirectoriesList(path string, recurse bool) (dataReadCloser io.ReadCloser, err error) {
if path == "" {
path = "/"
}
pcs.setPCSURL("file", "list", map[string]string{
"path": path,
"by": "name",
"order": "asc", // 升序
"limit": "0-2147483647",
})
resp, err := pcs.client.Req("GET", pcs.url.String(), nil, nil)
if err != nil {
handleRespClose(resp)
return nil, fmt.Errorf("%s, 网络错误, %s", OperationFilesDirectoriesList, err)
}
return resp.Body, nil
}
// PrepareRemove 批量删除文件/目录, 只返回服务器响应数据和错误信息
func (pcs *BaiduPCS) PrepareRemove(paths ...string) (dataReadCloser io.ReadCloser, err error) {
sendData, err := (&PathsListJSON{}).JSON(paths...)
if err != nil {
panic(OperationMove + ", json 数据构造失败, " + err.Error())
}
pcs.setPCSURL("file", "delete")
// 表单上传
mr := multipartreader.NewMultipartReader()
mr.AddFormFeild("param", bytes.NewReader(sendData))
resp, err := pcs.client.Req("POST", pcs.url.String(), mr, nil)
if err != nil {
handleRespClose(resp)
return nil, fmt.Errorf("%s, 网络错误, %s", OperationRemove, err)
}
return resp.Body, nil
}
// PrepareMkdir 创建目录, 只返回服务器响应数据和错误信息
func (pcs *BaiduPCS) PrepareMkdir(pcspath string) (dataReadCloser io.ReadCloser, err error) {
pcs.setPCSURL("file", "mkdir", map[string]string{
"path": pcspath,
})
resp, err := pcs.client.Req("POST", pcs.url.String(), nil, nil)
if err != nil {
handleRespClose(resp)
return nil, fmt.Errorf("%s, 网络错误, %s", OperationMkdir, err)
}
return resp.Body, nil
}
func (pcs *BaiduPCS) prepareCpMvOp(op string, cpmvJSON ...*CpMvJSON) (dataReadCloser io.ReadCloser, err error) {
var method string
switch op {
case OperationCopy:
method = "copy"
case OperationMove, OperationRename:
method = "move"
default:
panic("Unknown opreation: " + op)
}
sendData, err := (&CpMvListJSON{
List: cpmvJSON,
}).JSON()
if err != nil {
return nil, err
}
pcs.setPCSURL("file", method)
// 表单上传
mr := multipartreader.NewMultipartReader()
mr.AddFormFeild("param", bytes.NewReader(sendData))
resp, err := pcs.client.Req("POST", pcs.url.String(), mr, nil)
if err != nil {
handleRespClose(resp)
return nil, fmt.Errorf("%s, 网络错误, %s", op, err)
}
return resp.Body, nil
}
// PrepareRename 重命名文件/目录, 只返回服务器响应数据和错误信息
func (pcs *BaiduPCS) PrepareRename(from, to string) (dataReadCloser io.ReadCloser, err error) {
return pcs.prepareCpMvOp(OperationRename, &CpMvJSON{
From: from,
To: to,
})
}
// PrepareCopy 批量拷贝文件/目录, 只返回服务器响应数据和错误信息
func (pcs *BaiduPCS) PrepareCopy(cpmvJSON ...*CpMvJSON) (dataReadCloser io.ReadCloser, err error) {
return pcs.prepareCpMvOp(OperationCopy, cpmvJSON...)
}
// PrepareMove 批量移动文件/目录, 只返回服务器响应数据和错误信息
func (pcs *BaiduPCS) PrepareMove(cpmvJSON ...*CpMvJSON) (dataReadCloser io.ReadCloser, err error) {
return pcs.prepareCpMvOp(OperationMove, cpmvJSON...)
}
// PrepareRapidUpload 秒传文件, 只返回服务器响应数据和错误信息
func (pcs *BaiduPCS) PrepareRapidUpload(targetPath, contentMD5, sliceMD5, crc32 string, length int64) (dataReadCloser io.ReadCloser, err error) {
if targetPath == "/" || pcs.Isdir(targetPath) {
return nil, fmt.Errorf("%s 遇到错误, 保存路径不可以覆盖目录", OperationRapidUpload)
}
pcs.setPCSURL("file", "rapidupload", map[string]string{
"path": targetPath, // 上传文件的全路径名
"content-length": strconv.FormatInt(length, 10), // 待秒传的文件长度
"content-md5": contentMD5, // 待秒传的文件的MD5
"slice-md5": sliceMD5, // 待秒传的文件的MD5
"content-crc32": crc32, // 待秒传文件CRC32
"ondup": "overwrite", // overwrite: 表示覆盖同名文件; newcopy: 表示生成文件副本并进行重命名,命名规则为“文件名_日期.后缀”
})
resp, err := pcs.client.Req("POST", pcs.url.String(), nil, nil)
if err != nil {
handleRespClose(resp)
return
}
return resp.Body, nil
}
// PrepareUpload 上传单个文件, 只返回服务器响应数据和错误信息
func (pcs *BaiduPCS) PrepareUpload(targetPath string, uploadFunc UploadFunc) (dataReadCloser io.ReadCloser, err error) {
if targetPath == "/" || pcs.Isdir(targetPath) {
return nil, fmt.Errorf("%s, 遇到错误, 保存路径不可以覆盖目录", OperationUpload)
}
pcs.setPCSURL("file", "upload", map[string]string{
"path": targetPath,
"ondup": "overwrite",
})
resp, err := uploadFunc(pcs.url.String(), pcs.client.Jar.(*cookiejar.Jar))
if err != nil {
handleRespClose(resp)
return nil, fmt.Errorf("%s, 发生错误, %s", OperationUpload, err)
}
err = handleRespStatusError(OperationUpload, resp)
if err != nil {
return
}
return resp.Body, nil
}
// PrepareUploadTmpFile 分片上传—文件分片及上传, 只返回服务器响应数据和错误信息
func (pcs *BaiduPCS) PrepareUploadTmpFile(uploadFunc UploadFunc) (dataReadCloser io.ReadCloser, err error) {
pcs.setPCSURL("file", "upload", map[string]string{
"type": "tmpfile",
})
resp, err := uploadFunc(pcs.url.String(), pcs.client.Jar.(*cookiejar.Jar))
if err != nil {
handleRespClose(resp)
return nil, fmt.Errorf("%s, 发生错误, %s", OperationUploadTmpFile, err)
}
err = handleRespStatusError(OperationUpload, resp)
if err != nil {
return
}
return resp.Body, nil
}
// PrepareUploadCreateSuperFile 分片上传—合并分片文件, 只返回服务器响应数据和错误信息
func (pcs *BaiduPCS) PrepareUploadCreateSuperFile(targetPath string, blockList ...string) (dataReadCloser io.ReadCloser, err error) {
if targetPath == "/" || pcs.Isdir(targetPath) {
return nil, fmt.Errorf("%s 遇到错误, 保存路径不可以覆盖目录", OperationUploadCreateSuperFile)
}
bl := &struct {
BlockList []string `json:"block_list"`
}{
BlockList: blockList,
}
sendData, err := jsoniter.Marshal(bl)
if err != nil {
panic(OperationUploadCreateSuperFile + " 发生错误, " + err.Error())
}
pcs.setPCSURL("file", "createsuperfile", map[string]string{
"path": targetPath,
"ondup": "overwrite",
})
// 表单上传
mr := multipartreader.NewMultipartReader()
mr.AddFormFeild("param", bytes.NewReader(sendData))
resp, err := pcs.client.Req("POST", pcs.url.String(), mr, nil)
if err != nil {
handleRespClose(resp)
return nil, fmt.Errorf("%s, 网络错误, %s", OperationUploadCreateSuperFile, err)
}
return resp.Body, nil
}
// PrepareCloudDlAddTask 添加离线下载任务, 只返回服务器响应数据和错误信息
func (pcs *BaiduPCS) PrepareCloudDlAddTask(sourceURL, savePath string) (dataReadCloser io.ReadCloser, err error) {
pcs.setPCSURL2("services/cloud_dl", "add_task", map[string]string{
"save_path": savePath,
"source_url": sourceURL,
"timeout": "86400",
})
resp, err := pcs.client.Req("POST", pcs.url.String(), nil, nil)
if err != nil {
handleRespClose(resp)
return nil, fmt.Errorf("%s, 网络错误, %s", OperationCloudDlAddTask, err)
}
return resp.Body, nil
}
// PrepareCloudDlQueryTask 精确查询离线下载任务, 只返回服务器响应数据和错误信息,
// taskids 例子: 12123,234234,2344, 用逗号隔开多个 task_id
func (pcs *BaiduPCS) PrepareCloudDlQueryTask(taskIDs string) (dataReadCloser io.ReadCloser, err error) {
pcs.setPCSURL2("services/cloud_dl", "query_task", map[string]string{
"task_ids": taskIDs,
"op_type": "1",
})
resp, err := pcs.client.Req("POST", pcs.url.String(), nil, nil)
if err != nil {
handleRespClose(resp)
return nil, fmt.Errorf("%s, 网络错误, %s", OperationCloudDlQueryTask, err)
}
return resp.Body, nil
}
// PrepareCloudDlListTask 查询离线下载任务列表, 只返回服务器响应数据和错误信息
func (pcs *BaiduPCS) PrepareCloudDlListTask() (dataReadCloser io.ReadCloser, err error) {
pcs.setPCSURL2("services/cloud_dl", "list_task", map[string]string{
"need_task_info": "1",
"status": "255",
"start": "0",
"limit": "1000",
})
resp, err := pcs.client.Req("POST", pcs.url.String(), nil, nil)
if err != nil {
handleRespClose(resp)
return nil, fmt.Errorf("%s, 网络错误, %s", OperationCloudDlListTask, err)
}
return resp.Body, nil
}
func (pcs *BaiduPCS) prepareCloudDlCDTask(opreation, method string, taskID int64) (dataReadCloser io.ReadCloser, err error) {
pcs.setPCSURL2("services/cloud_dl", method, map[string]string{
"task_id": strconv.FormatInt(taskID, 10),
})
resp, err := pcs.client.Req("POST", pcs.url.String(), nil, nil)
if err != nil {
handleRespClose(resp)
return nil, fmt.Errorf("%s, 网络错误, %s", opreation, err)
}
return resp.Body, nil
}
// PrepareCloudDlCancelTask 取消离线下载任务, 只返回服务器响应数据和错误信息
func (pcs *BaiduPCS) PrepareCloudDlCancelTask(taskID int64) (dataReadCloser io.ReadCloser, err error) {
return pcs.prepareCloudDlCDTask(OperationCloudDlCancelTask, "cancel_task", taskID)
}
// PrepareCloudDlDeleteTask 取消离线下载任务, 只返回服务器响应数据和错误信息
func (pcs *BaiduPCS) PrepareCloudDlDeleteTask(taskID int64) (dataReadCloser io.ReadCloser, err error) {
return pcs.prepareCloudDlCDTask(OperationCloudDlDeleteTask, "delete_task", taskID)
}