alist/server/handles/fsmanage.go

371 lines
8.5 KiB
Go

package handles
import (
"fmt"
"github.com/alist-org/alist/v3/internal/task"
"io"
stdpath "path"
"github.com/alist-org/alist/v3/internal/errs"
"github.com/alist-org/alist/v3/internal/fs"
"github.com/alist-org/alist/v3/internal/model"
"github.com/alist-org/alist/v3/internal/op"
"github.com/alist-org/alist/v3/internal/sign"
"github.com/alist-org/alist/v3/pkg/generic"
"github.com/alist-org/alist/v3/pkg/utils"
"github.com/alist-org/alist/v3/server/common"
"github.com/gin-gonic/gin"
"github.com/pkg/errors"
log "github.com/sirupsen/logrus"
)
type MkdirOrLinkReq struct {
Path string `json:"path" form:"path"`
}
func FsMkdir(c *gin.Context) {
var req MkdirOrLinkReq
if err := c.ShouldBind(&req); err != nil {
common.ErrorResp(c, err, 400)
return
}
user := c.MustGet("user").(*model.User)
reqPath, err := user.JoinPath(req.Path)
if err != nil {
common.ErrorResp(c, err, 403)
return
}
if !user.CanWrite() {
meta, err := op.GetNearestMeta(stdpath.Dir(reqPath))
if err != nil {
if !errors.Is(errors.Cause(err), errs.MetaNotFound) {
common.ErrorResp(c, err, 500, true)
return
}
}
if !common.CanWrite(meta, reqPath) {
common.ErrorResp(c, errs.PermissionDenied, 403)
return
}
}
if err := fs.MakeDir(c, reqPath); err != nil {
common.ErrorResp(c, err, 500)
return
}
common.SuccessResp(c)
}
type MoveCopyReq struct {
SrcDir string `json:"src_dir"`
DstDir string `json:"dst_dir"`
Names []string `json:"names"`
Overwrite bool `json:"overwrite"`
}
func FsMove(c *gin.Context) {
var req MoveCopyReq
if err := c.ShouldBind(&req); err != nil {
common.ErrorResp(c, err, 400)
return
}
if len(req.Names) == 0 {
common.ErrorStrResp(c, "Empty file names", 400)
return
}
user := c.MustGet("user").(*model.User)
if !user.CanMove() {
common.ErrorResp(c, errs.PermissionDenied, 403)
return
}
srcDir, err := user.JoinPath(req.SrcDir)
if err != nil {
common.ErrorResp(c, err, 403)
return
}
dstDir, err := user.JoinPath(req.DstDir)
if err != nil {
common.ErrorResp(c, err, 403)
return
}
if !req.Overwrite {
for _, name := range req.Names {
if res, _ := fs.Get(c, stdpath.Join(dstDir, name), &fs.GetArgs{NoLog: true}); res != nil {
common.ErrorStrResp(c, fmt.Sprintf("file [%s] exists", name), 403)
return
}
}
}
for i, name := range req.Names {
err := fs.Move(c, stdpath.Join(srcDir, name), dstDir, len(req.Names) > i+1)
if err != nil {
common.ErrorResp(c, err, 500)
return
}
}
common.SuccessResp(c)
}
func FsCopy(c *gin.Context) {
var req MoveCopyReq
if err := c.ShouldBind(&req); err != nil {
common.ErrorResp(c, err, 400)
return
}
if len(req.Names) == 0 {
common.ErrorStrResp(c, "Empty file names", 400)
return
}
user := c.MustGet("user").(*model.User)
if !user.CanCopy() {
common.ErrorResp(c, errs.PermissionDenied, 403)
return
}
srcDir, err := user.JoinPath(req.SrcDir)
if err != nil {
common.ErrorResp(c, err, 403)
return
}
dstDir, err := user.JoinPath(req.DstDir)
if err != nil {
common.ErrorResp(c, err, 403)
return
}
if !req.Overwrite {
for _, name := range req.Names {
if res, _ := fs.Get(c, stdpath.Join(dstDir, name), &fs.GetArgs{NoLog: true}); res != nil {
common.ErrorStrResp(c, fmt.Sprintf("file [%s] exists", name), 403)
return
}
}
}
var addedTasks []task.TaskExtensionInfo
for i, name := range req.Names {
t, err := fs.Copy(c, stdpath.Join(srcDir, name), dstDir, len(req.Names) > i+1)
if t != nil {
addedTasks = append(addedTasks, t)
}
if err != nil {
common.ErrorResp(c, err, 500)
return
}
}
common.SuccessResp(c, gin.H{
"tasks": getTaskInfos(addedTasks),
})
}
type RenameReq struct {
Path string `json:"path"`
Name string `json:"name"`
Overwrite bool `json:"overwrite"`
}
func FsRename(c *gin.Context) {
var req RenameReq
if err := c.ShouldBind(&req); err != nil {
common.ErrorResp(c, err, 400)
return
}
user := c.MustGet("user").(*model.User)
if !user.CanRename() {
common.ErrorResp(c, errs.PermissionDenied, 403)
return
}
reqPath, err := user.JoinPath(req.Path)
if err != nil {
common.ErrorResp(c, err, 403)
return
}
if !req.Overwrite {
dstPath := stdpath.Join(stdpath.Dir(reqPath), req.Name)
if dstPath != reqPath {
if res, _ := fs.Get(c, dstPath, &fs.GetArgs{NoLog: true}); res != nil {
common.ErrorStrResp(c, fmt.Sprintf("file [%s] exists", req.Name), 403)
return
}
}
}
if err := fs.Rename(c, reqPath, req.Name); err != nil {
common.ErrorResp(c, err, 500)
return
}
common.SuccessResp(c)
}
type RemoveReq struct {
Dir string `json:"dir"`
Names []string `json:"names"`
}
func FsRemove(c *gin.Context) {
var req RemoveReq
if err := c.ShouldBind(&req); err != nil {
common.ErrorResp(c, err, 400)
return
}
if len(req.Names) == 0 {
common.ErrorStrResp(c, "Empty file names", 400)
return
}
user := c.MustGet("user").(*model.User)
if !user.CanRemove() {
common.ErrorResp(c, errs.PermissionDenied, 403)
return
}
reqDir, err := user.JoinPath(req.Dir)
if err != nil {
common.ErrorResp(c, err, 403)
return
}
for _, name := range req.Names {
err := fs.Remove(c, stdpath.Join(reqDir, name))
if err != nil {
common.ErrorResp(c, err, 500)
return
}
}
//fs.ClearCache(req.Dir)
common.SuccessResp(c)
}
type RemoveEmptyDirectoryReq struct {
SrcDir string `json:"src_dir"`
}
func FsRemoveEmptyDirectory(c *gin.Context) {
var req RemoveEmptyDirectoryReq
if err := c.ShouldBind(&req); err != nil {
common.ErrorResp(c, err, 400)
return
}
user := c.MustGet("user").(*model.User)
if !user.CanRemove() {
common.ErrorResp(c, errs.PermissionDenied, 403)
return
}
srcDir, err := user.JoinPath(req.SrcDir)
if err != nil {
common.ErrorResp(c, err, 403)
return
}
meta, err := op.GetNearestMeta(srcDir)
if err != nil {
if !errors.Is(errors.Cause(err), errs.MetaNotFound) {
common.ErrorResp(c, err, 500, true)
return
}
}
c.Set("meta", meta)
rootFiles, err := fs.List(c, srcDir, &fs.ListArgs{})
if err != nil {
common.ErrorResp(c, err, 500)
return
}
// record the file path
filePathMap := make(map[model.Obj]string)
// record the parent file
fileParentMap := make(map[model.Obj]model.Obj)
// removing files
removingFiles := generic.NewQueue[model.Obj]()
// removed files
removedFiles := make(map[string]bool)
for _, file := range rootFiles {
if !file.IsDir() {
continue
}
removingFiles.Push(file)
filePathMap[file] = srcDir
}
for !removingFiles.IsEmpty() {
removingFile := removingFiles.Pop()
removingFilePath := fmt.Sprintf("%s/%s", filePathMap[removingFile], removingFile.GetName())
if removedFiles[removingFilePath] {
continue
}
subFiles, err := fs.List(c, removingFilePath, &fs.ListArgs{Refresh: true})
if err != nil {
common.ErrorResp(c, err, 500)
return
}
if len(subFiles) == 0 {
// remove empty directory
err = fs.Remove(c, removingFilePath)
removedFiles[removingFilePath] = true
if err != nil {
common.ErrorResp(c, err, 500)
return
}
// recheck parent folder
parentFile, exist := fileParentMap[removingFile]
if exist {
removingFiles.Push(parentFile)
}
} else {
// recursive remove
for _, subFile := range subFiles {
if !subFile.IsDir() {
continue
}
removingFiles.Push(subFile)
filePathMap[subFile] = removingFilePath
fileParentMap[subFile] = removingFile
}
}
}
common.SuccessResp(c)
}
// Link return real link, just for proxy program, it may contain cookie, so just allowed for admin
func Link(c *gin.Context) {
var req MkdirOrLinkReq
if err := c.ShouldBind(&req); err != nil {
common.ErrorResp(c, err, 400)
return
}
//user := c.MustGet("user").(*model.User)
//rawPath := stdpath.Join(user.BasePath, req.Path)
// why need not join base_path? because it's always the full path
rawPath := req.Path
storage, err := fs.GetStorage(rawPath, &fs.GetStoragesArgs{})
if err != nil {
common.ErrorResp(c, err, 500)
return
}
if storage.Config().OnlyLocal {
common.SuccessResp(c, model.Link{
URL: fmt.Sprintf("%s/p%s?d&sign=%s",
common.GetApiUrl(c.Request),
utils.EncodePath(rawPath, true),
sign.Sign(rawPath)),
})
return
}
link, _, err := fs.Link(c, rawPath, model.LinkArgs{IP: c.ClientIP(), Header: c.Request.Header, HttpReq: c.Request})
if err != nil {
common.ErrorResp(c, err, 500)
return
}
if link.MFile != nil {
defer func(ReadSeekCloser io.ReadCloser) {
err := ReadSeekCloser.Close()
if err != nil {
log.Errorf("close link data error: %v", err)
}
}(link.MFile)
}
common.SuccessResp(c, link)
return
}