1012 lines
27 KiB
Go
1012 lines
27 KiB
Go
package rest
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import (
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"archive/zip"
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"fmt"
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"github.com/eyebluecn/tank/code/core"
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"github.com/eyebluecn/tank/code/tool/download"
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"github.com/eyebluecn/tank/code/tool/i18n"
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"github.com/eyebluecn/tank/code/tool/result"
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"github.com/eyebluecn/tank/code/tool/util"
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"io"
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"io/ioutil"
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"net/http"
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"os"
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"regexp"
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"strings"
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"time"
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)
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/**
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* 操作文件的Service
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* 以 Atomic 开头的方法带有操作锁，这种方法不能被其他的Atomic方法调用，只能提供给外部调用。
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*/
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//@Service
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type MatterService struct {
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BaseBean
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matterDao *MatterDao
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userDao *UserDao
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userService *UserService
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imageCacheDao *ImageCacheDao
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imageCacheService *ImageCacheService
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preferenceService *PreferenceService
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}
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//初始化方法
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func (this *MatterService) Init() {
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this.BaseBean.Init()
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//手动装填本实例的Bean. 这里必须要用中间变量方可。
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b := core.CONTEXT.GetBean(this.matterDao)
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if b, ok := b.(*MatterDao); ok {
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this.matterDao = b
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}
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b = core.CONTEXT.GetBean(this.userDao)
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if b, ok := b.(*UserDao); ok {
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this.userDao = b
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}
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b = core.CONTEXT.GetBean(this.userService)
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if b, ok := b.(*UserService); ok {
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this.userService = b
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}
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b = core.CONTEXT.GetBean(this.imageCacheDao)
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if b, ok := b.(*ImageCacheDao); ok {
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this.imageCacheDao = b
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}
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b = core.CONTEXT.GetBean(this.imageCacheService)
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if b, ok := b.(*ImageCacheService); ok {
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this.imageCacheService = b
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}
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b = core.CONTEXT.GetBean(this.preferenceService)
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if b, ok := b.(*PreferenceService); ok {
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this.preferenceService = b
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}
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}
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//文件下载。支持分片下载
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func (this *MatterService) DownloadFile(
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writer http.ResponseWriter,
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request *http.Request,
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filePath string,
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filename string,
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withContentDisposition bool) {
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download.DownloadFile(writer, request, filePath, filename, withContentDisposition)
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}
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//下载文件 要求必须是同一个父matter下的。
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func (this *MatterService) DownloadZip(
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writer http.ResponseWriter,
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request *http.Request,
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matters []*Matter) {
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if matters == nil || len(matters) == 0 {
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panic(result.BadRequest("matters cannot be nil."))
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}
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userUuid := matters[0].UserUuid
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puuid := matters[0].Puuid
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for _, m := range matters {
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if m.UserUuid != userUuid {
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panic(result.BadRequest("userUuid not same"))
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} else if m.Puuid != puuid {
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panic(result.BadRequest("puuid not same"))
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}
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}
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preference := this.preferenceService.Fetch()
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var count int64 = 0
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for _, matter := range matters {
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//验证文件夹中文件数量
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count = count + this.matterDao.CountByUserUuidAndPath(matter.UserUuid, matter.Path)
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}
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//文件数量判断。
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if preference.DownloadDirMaxNum >= 0 {
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if count > preference.DownloadDirMaxNum {
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panic(result.BadRequestI18n(request, i18n.MatterSelectNumExceedLimit, count, preference.DownloadDirMaxNum))
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}
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}
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var sumSize int64 = 0
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for _, matter := range matters {
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//验证文件夹中文件数量
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sumSize = sumSize + this.matterDao.SumSizeByUserUuidAndPath(matter.UserUuid, matter.Path)
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}
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//判断用户自身上传大小的限制
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//大小判断
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if preference.DownloadDirMaxSize >= 0 {
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if sumSize > preference.DownloadDirMaxSize {
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panic(result.BadRequestI18n(request, i18n.MatterSelectSizeExceedLimit, util.HumanFileSize(sumSize), util.HumanFileSize(preference.DownloadDirMaxSize)))
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}
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}
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//准备zip放置的目录。
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destZipDirPath := fmt.Sprintf("%s/%d", GetUserZipRootDir(matters[0].Username), time.Now().UnixNano()/1e6)
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util.MakeDirAll(destZipDirPath)
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destZipName := fmt.Sprintf("%s.zip", matters[0].Name)
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if len(matters) > 1 || !matters[0].Dir {
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destZipName = "archive.zip"
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}
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destZipPath := fmt.Sprintf("%s/%s", destZipDirPath, destZipName)
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//_ = util.Zip(matter.AbsolutePath(), destZipPath)
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this.zipMatters(request, matters, destZipPath)
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//下载
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download.DownloadFile(writer, request, destZipPath, destZipName, true)
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//删除临时压缩文件
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err := os.Remove(destZipPath)
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if err != nil {
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this.logger.Error("error while deleting zip file %s", err.Error())
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}
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util.DeleteEmptyDir(destZipDirPath)
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}
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//打包一系列的matter
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func (this *MatterService) zipMatters(request *http.Request, matters []*Matter, destPath string) {
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if util.PathExists(destPath) {
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panic(result.BadRequest("%s exists", destPath))
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}
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//要求必须是同一个父matter下的。
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if matters == nil || len(matters) == 0 {
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panic(result.BadRequest("matters cannot be nil."))
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}
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userUuid := matters[0].UserUuid
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puuid := matters[0].Puuid
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baseDirPath := util.GetDirOfPath(matters[0].AbsolutePath()) + "/"
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for _, m := range matters {
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if m.UserUuid != userUuid {
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panic(result.BadRequest("userUuid not same"))
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} else if m.Puuid != puuid {
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panic(result.BadRequest("puuid not same"))
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}
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}
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//将每个matter的children装填好
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for _, m := range matters {
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this.WrapChildrenDetail(request, m)
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}
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// 创建准备写入的文件
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fileWriter, err := os.Create(destPath)
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this.PanicError(err)
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defer func() {
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err := fileWriter.Close()
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this.PanicError(err)
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}()
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// 通过 fileWriter 来创建 zip.Write
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zipWriter := zip.NewWriter(fileWriter)
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defer func() {
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// 检测一下是否成功关闭
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err := zipWriter.Close()
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this.PanicError(err)
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}()
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//采用深度优先搜索算法。
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var walkFunc func(matter *Matter)
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walkFunc = func(matter *Matter) {
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path := matter.AbsolutePath()
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fileInfo, err := os.Stat(path)
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this.PanicError(err)
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// 通过文件信息，创建 zip 的文件信息
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fileHeader, err := zip.FileInfoHeader(fileInfo)
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this.PanicError(err)
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// 替换文件信息中的文件名
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fileHeader.Name = strings.TrimPrefix(path, baseDirPath)
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// 目录前要加上/
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if matter.Dir {
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fileHeader.Name += "/"
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}
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// 写入文件信息，并返回一个 Write 结构
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writer, err := zipWriter.CreateHeader(fileHeader)
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this.PanicError(err)
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// 检测，如果不是标准文件就只写入头信息，不写入文件数据到 writer
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// 如目录，也没有数据需要写
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if fileHeader.Mode().IsRegular() {
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// 打开要压缩的文件
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fileToBeZip, err := os.Open(path)
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defer func() {
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err = fileToBeZip.Close()
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this.PanicError(err)
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}()
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this.PanicError(err)
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// 将打开的文件 Copy 到 writer
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_, err = io.Copy(writer, fileToBeZip)
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this.PanicError(err)
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}
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//如果有子文件，继续往下钻
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for _, m := range matter.Children {
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walkFunc(m)
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}
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}
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for _, m := range matters {
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walkFunc(m)
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}
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}
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//删除文件
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func (this *MatterService) Delete(request *http.Request, matter *Matter) {
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if matter == nil {
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panic(result.BadRequest("matter cannot be nil"))
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}
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this.matterDao.Delete(matter)
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//重新计算文件大小
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this.matterDao.ComputeRouteSize(matter.Puuid, matter.UserUuid)
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}
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//删除文件
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func (this *MatterService) AtomicDelete(request *http.Request, matter *Matter) {
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if matter == nil {
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panic(result.BadRequest("matter cannot be nil"))
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}
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//操作锁
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this.userService.MatterLock(matter.UserUuid)
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defer this.userService.MatterUnlock(matter.UserUuid)
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this.Delete(request, matter)
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}
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//上传文件
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func (this *MatterService) Upload(request *http.Request, file io.Reader, user *User, dirMatter *Matter, filename string, privacy bool) *Matter {
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if user == nil {
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panic(result.BadRequest("user cannot be nil."))
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}
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//验证dirMatter
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if dirMatter == nil {
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panic(result.BadRequest("dirMatter cannot be nil."))
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}
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//文件名不能太长。
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if len(filename) > MATTER_NAME_MAX_LENGTH {
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panic(result.BadRequestI18n(request, i18n.MatterNameLengthExceedLimit, len(filename), MATTER_NAME_MAX_LENGTH))
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}
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//文件夹路径
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dirAbsolutePath := dirMatter.AbsolutePath()
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dirRelativePath := dirMatter.Path
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count := this.matterDao.CountByUserUuidAndPuuidAndDirAndName(user.Uuid, dirMatter.Uuid, false, filename)
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if count > 0 {
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panic(result.BadRequest("%s already exists", filename))
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}
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//获取文件应该存放在的物理路径的绝对路径和相对路径。
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fileAbsolutePath := dirAbsolutePath + "/" + filename
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fileRelativePath := dirRelativePath + "/" + filename
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||
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||
//创建父文件夹
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util.MakeDirAll(dirAbsolutePath)
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||
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//如果文件已经存在了，那么直接覆盖。
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||
exist := util.PathExists(fileAbsolutePath)
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||
if exist {
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||
this.logger.Error("%s已经存在，将其删除", fileAbsolutePath)
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||
removeError := os.Remove(fileAbsolutePath)
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||
this.PanicError(removeError)
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||
}
|
||
|
||
destFile, err := os.OpenFile(fileAbsolutePath, os.O_WRONLY|os.O_CREATE, 0777)
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||
this.PanicError(err)
|
||
|
||
defer func() {
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||
err := destFile.Close()
|
||
this.PanicError(err)
|
||
}()
|
||
|
||
fileSize, err := io.Copy(destFile, file)
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||
this.PanicError(err)
|
||
|
||
this.logger.Info("上传文件 %s 大小为 %v ", filename, util.HumanFileSize(fileSize))
|
||
|
||
//判断用户自身上传大小的限制。
|
||
if user.SizeLimit >= 0 {
|
||
if fileSize > user.SizeLimit {
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||
//删除上传过来的内容
|
||
err = os.Remove(fileAbsolutePath)
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||
this.PanicError(err)
|
||
|
||
panic(result.BadRequest("file's size exceed the limit %s > %s ", util.HumanFileSize(user.SizeLimit), util.HumanFileSize(fileSize)))
|
||
}
|
||
}
|
||
|
||
//将文件信息存入数据库中。
|
||
matter := &Matter{
|
||
Puuid: dirMatter.Uuid,
|
||
UserUuid: user.Uuid,
|
||
Username: user.Username,
|
||
Dir: false,
|
||
Name: filename,
|
||
Md5: "",
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||
Size: fileSize,
|
||
Privacy: privacy,
|
||
Path: fileRelativePath,
|
||
}
|
||
matter = this.matterDao.Create(matter)
|
||
|
||
//统计文件夹的大小。
|
||
go core.RunWithRecovery(func() {
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||
this.matterDao.ComputeRouteSize(dirMatter.Uuid, user.Uuid)
|
||
})
|
||
|
||
return matter
|
||
}
|
||
|
||
//上传文件
|
||
func (this *MatterService) AtomicUpload(request *http.Request, file io.Reader, user *User, dirMatter *Matter, filename string, privacy bool) *Matter {
|
||
|
||
if user == nil {
|
||
panic(result.BadRequest("user cannot be nil."))
|
||
}
|
||
|
||
//操作锁
|
||
this.userService.MatterLock(user.Uuid)
|
||
defer this.userService.MatterUnlock(user.Uuid)
|
||
|
||
return this.Upload(request, file, user, dirMatter, filename, privacy)
|
||
}
|
||
|
||
//内部创建文件，不带操作锁。
|
||
func (this *MatterService) createDirectory(request *http.Request, dirMatter *Matter, name string, user *User) *Matter {
|
||
|
||
//父级matter必须存在
|
||
if dirMatter == nil {
|
||
panic(result.BadRequest("dirMatter cannot be nil"))
|
||
}
|
||
|
||
//必须是文件夹
|
||
if !dirMatter.Dir {
|
||
panic(result.BadRequest("dirMatter must be directory"))
|
||
}
|
||
|
||
if dirMatter.UserUuid != user.Uuid {
|
||
|
||
panic(result.BadRequest("file's user not the same"))
|
||
}
|
||
|
||
name = strings.TrimSpace(name)
|
||
//验证参数。
|
||
if name == "" {
|
||
panic(result.BadRequest("name cannot be blank"))
|
||
}
|
||
|
||
if len(name) > MATTER_NAME_MAX_LENGTH {
|
||
|
||
panic(result.BadRequestI18n(request, i18n.MatterNameLengthExceedLimit, len(name), MATTER_NAME_MAX_LENGTH))
|
||
|
||
}
|
||
|
||
if m, _ := regexp.MatchString(MATTER_NAME_PATTERN, name); m {
|
||
panic(result.BadRequestI18n(request, i18n.MatterNameContainSpecialChars))
|
||
}
|
||
|
||
//判断同级文件夹中是否有同名的文件夹。存在了直接返回即可。
|
||
matter := this.matterDao.FindByUserUuidAndPuuidAndDirAndName(user.Uuid, dirMatter.Uuid, true, name)
|
||
if matter != nil {
|
||
return matter
|
||
}
|
||
|
||
parts := strings.Split(dirMatter.Path, "/")
|
||
|
||
if len(parts) > MATTER_NAME_MAX_DEPTH {
|
||
panic(result.BadRequestI18n(request, i18n.MatterDepthExceedLimit, len(parts), MATTER_NAME_MAX_DEPTH))
|
||
}
|
||
|
||
//绝对路径
|
||
absolutePath := GetUserFileRootDir(user.Username) + dirMatter.Path + "/" + name
|
||
|
||
//相对路径
|
||
relativePath := dirMatter.Path + "/" + name
|
||
|
||
//磁盘中创建文件夹。
|
||
dirPath := util.MakeDirAll(absolutePath)
|
||
this.logger.Info("Create Directory: %s", dirPath)
|
||
|
||
//数据库中创建文件夹。
|
||
matter = &Matter{
|
||
Puuid: dirMatter.Uuid,
|
||
UserUuid: user.Uuid,
|
||
Username: user.Username,
|
||
Dir: true,
|
||
Name: name,
|
||
Path: relativePath,
|
||
}
|
||
|
||
matter = this.matterDao.Create(matter)
|
||
|
||
return matter
|
||
}
|
||
|
||
//在dirMatter中创建文件夹 返回刚刚创建的这个文件夹
|
||
func (this *MatterService) AtomicCreateDirectory(request *http.Request, dirMatter *Matter, name string, user *User) *Matter {
|
||
|
||
//操作锁
|
||
this.userService.MatterLock(user.Uuid)
|
||
defer this.userService.MatterUnlock(user.Uuid)
|
||
|
||
matter := this.createDirectory(request, dirMatter, name, user)
|
||
|
||
return matter
|
||
}
|
||
|
||
//处理 移动和复制时可能存在的覆盖问题。
|
||
func (this *MatterService) handleOverwrite(request *http.Request, userUuid string, destinationPath string, overwrite bool) {
|
||
|
||
//目标matter。因为有可能已经存在了
|
||
destMatter := this.matterDao.findByUserUuidAndPath(userUuid, destinationPath)
|
||
//如果目标matter存在了。
|
||
if destMatter != nil {
|
||
//如果目标matter还存在了。
|
||
if overwrite {
|
||
//要求覆盖。那么删除。
|
||
this.Delete(request, destMatter)
|
||
} else {
|
||
panic(result.BadRequestI18n(request, i18n.MatterExist, destMatter.Path))
|
||
}
|
||
}
|
||
|
||
}
|
||
|
||
//将一个srcMatter放置到另一个destMatter(必须为文件夹)下 不关注 overwrite 和 lock.
|
||
func (this *MatterService) move(request *http.Request, srcMatter *Matter, destDirMatter *Matter) {
|
||
|
||
if srcMatter == nil {
|
||
panic(result.BadRequest("srcMatter cannot be nil."))
|
||
}
|
||
|
||
if !destDirMatter.Dir {
|
||
panic(result.BadRequestI18n(request, i18n.MatterDestinationMustDirectory))
|
||
}
|
||
|
||
userUuid := srcMatter.UserUuid
|
||
srcPuuid := srcMatter.Puuid
|
||
destDirUuid := destDirMatter.Uuid
|
||
|
||
if srcMatter.Dir {
|
||
//如果源是文件夹
|
||
destAbsolutePath := destDirMatter.AbsolutePath() + "/" + srcMatter.Name
|
||
srcAbsolutePath := srcMatter.AbsolutePath()
|
||
|
||
//物理文件一口气移动
|
||
err := os.Rename(srcAbsolutePath, destAbsolutePath)
|
||
this.PanicError(err)
|
||
|
||
//修改数据库中信息
|
||
srcMatter.Puuid = destDirMatter.Uuid
|
||
srcMatter.Path = destDirMatter.Path + "/" + srcMatter.Name
|
||
srcMatter = this.matterDao.Save(srcMatter)
|
||
|
||
//调整该文件夹下文件的Path.
|
||
matters := this.matterDao.ListByPuuidAndUserUuid(srcMatter.Uuid, srcMatter.UserUuid, nil)
|
||
for _, m := range matters {
|
||
this.adjustPath(m, srcMatter)
|
||
}
|
||
|
||
} else {
|
||
//如果源是普通文件
|
||
|
||
destAbsolutePath := destDirMatter.AbsolutePath() + "/" + srcMatter.Name
|
||
srcAbsolutePath := srcMatter.AbsolutePath()
|
||
|
||
//物理文件进行移动
|
||
err := os.Rename(srcAbsolutePath, destAbsolutePath)
|
||
this.PanicError(err)
|
||
|
||
//删除对应的缓存。
|
||
this.imageCacheDao.DeleteByMatterUuid(srcMatter.Uuid)
|
||
|
||
//修改数据库中信息
|
||
srcMatter.Puuid = destDirMatter.Uuid
|
||
srcMatter.Path = destDirMatter.Path + "/" + srcMatter.Name
|
||
srcMatter = this.matterDao.Save(srcMatter)
|
||
|
||
}
|
||
|
||
//调整两个文件夹的大小
|
||
this.matterDao.ComputeRouteSize(srcPuuid, userUuid)
|
||
this.matterDao.ComputeRouteSize(destDirUuid, userUuid)
|
||
|
||
}
|
||
|
||
//将一个srcMatter放置到另一个destMatter(必须为文件夹)下
|
||
func (this *MatterService) AtomicMove(request *http.Request, srcMatter *Matter, destDirMatter *Matter, overwrite bool) {
|
||
|
||
if srcMatter == nil {
|
||
panic(result.BadRequest("srcMatter cannot be nil."))
|
||
}
|
||
|
||
//操作锁
|
||
this.userService.MatterLock(srcMatter.UserUuid)
|
||
defer this.userService.MatterUnlock(srcMatter.UserUuid)
|
||
|
||
if destDirMatter == nil {
|
||
panic(result.BadRequest("destDirMatter cannot be nil."))
|
||
}
|
||
if !destDirMatter.Dir {
|
||
panic(result.BadRequestI18n(request, i18n.MatterDestinationMustDirectory))
|
||
}
|
||
|
||
//文件夹不能把自己移入到自己中，也不可以移入到自己的子文件夹下。
|
||
destDirMatter = this.WrapParentDetail(request, destDirMatter)
|
||
tmpMatter := destDirMatter
|
||
for tmpMatter != nil {
|
||
if srcMatter.Uuid == tmpMatter.Uuid {
|
||
panic(result.BadRequestI18n(request, i18n.MatterMoveRecursive))
|
||
}
|
||
tmpMatter = tmpMatter.Parent
|
||
}
|
||
|
||
//处理覆盖的问题
|
||
destinationPath := destDirMatter.Path + "/" + srcMatter.Name
|
||
this.handleOverwrite(request, srcMatter.UserUuid, destinationPath, overwrite)
|
||
|
||
//做move操作。
|
||
this.move(request, srcMatter, destDirMatter)
|
||
}
|
||
|
||
//将一个srcMatter放置到另一个destMatter(必须为文件夹)下
|
||
func (this *MatterService) AtomicMoveBatch(request *http.Request, srcMatters []*Matter, destDirMatter *Matter) {
|
||
|
||
if destDirMatter == nil {
|
||
panic(result.BadRequest("destDirMatter cannot be nil."))
|
||
}
|
||
|
||
//操作锁
|
||
this.userService.MatterLock(destDirMatter.UserUuid)
|
||
defer this.userService.MatterUnlock(destDirMatter.UserUuid)
|
||
|
||
if srcMatters == nil {
|
||
panic(result.BadRequest("srcMatters cannot be nil."))
|
||
}
|
||
|
||
if !destDirMatter.Dir {
|
||
panic(result.BadRequestI18n(request, i18n.MatterDestinationMustDirectory))
|
||
}
|
||
|
||
//文件夹不能把自己移入到自己中，也不可以移入到自己的子文件夹下。
|
||
destDirMatter = this.WrapParentDetail(request, destDirMatter)
|
||
for _, srcMatter := range srcMatters {
|
||
|
||
tmpMatter := destDirMatter
|
||
for tmpMatter != nil {
|
||
if srcMatter.Uuid == tmpMatter.Uuid {
|
||
panic("文件夹不能把自己移入到自己中，也不可以移入到自己的子文件夹下。")
|
||
}
|
||
tmpMatter = tmpMatter.Parent
|
||
}
|
||
}
|
||
|
||
for _, srcMatter := range srcMatters {
|
||
this.move(request, srcMatter, destDirMatter)
|
||
}
|
||
|
||
}
|
||
|
||
//内部移动一个文件(提供给Copy调用)，无需关心overwrite问题。
|
||
func (this *MatterService) copy(request *http.Request, srcMatter *Matter, destDirMatter *Matter, name string) {
|
||
|
||
if srcMatter.Dir {
|
||
|
||
//如果源是文件夹
|
||
|
||
//在目标地址创建新文件夹。
|
||
newMatter := &Matter{
|
||
Puuid: destDirMatter.Uuid,
|
||
UserUuid: srcMatter.UserUuid,
|
||
Username: srcMatter.Username,
|
||
Dir: srcMatter.Dir,
|
||
Name: name,
|
||
Md5: "",
|
||
Size: srcMatter.Size,
|
||
Privacy: srcMatter.Privacy,
|
||
Path: destDirMatter.Path + "/" + name,
|
||
}
|
||
|
||
newMatter = this.matterDao.Create(newMatter)
|
||
|
||
//复制子文件或文件夹
|
||
matters := this.matterDao.ListByPuuidAndUserUuid(srcMatter.Uuid, srcMatter.UserUuid, nil)
|
||
for _, m := range matters {
|
||
this.copy(request, m, newMatter, m.Name)
|
||
}
|
||
|
||
} else {
|
||
|
||
//如果源是普通文件
|
||
destAbsolutePath := destDirMatter.AbsolutePath() + "/" + name
|
||
srcAbsolutePath := srcMatter.AbsolutePath()
|
||
|
||
//物理文件进行复制
|
||
util.CopyFile(srcAbsolutePath, destAbsolutePath)
|
||
|
||
//创建新文件的数据库信息。
|
||
newMatter := &Matter{
|
||
Puuid: destDirMatter.Uuid,
|
||
UserUuid: srcMatter.UserUuid,
|
||
Username: srcMatter.Username,
|
||
Dir: srcMatter.Dir,
|
||
Name: name,
|
||
Md5: "",
|
||
Size: srcMatter.Size,
|
||
Privacy: srcMatter.Privacy,
|
||
Path: destDirMatter.Path + "/" + name,
|
||
}
|
||
newMatter = this.matterDao.Create(newMatter)
|
||
|
||
}
|
||
}
|
||
|
||
//将一个srcMatter复制到另一个destMatter(必须为文件夹)下，名字叫做name
|
||
func (this *MatterService) AtomicCopy(request *http.Request, srcMatter *Matter, destDirMatter *Matter, name string, overwrite bool) {
|
||
|
||
if srcMatter == nil {
|
||
panic(result.BadRequest("srcMatter cannot be nil."))
|
||
}
|
||
|
||
//操作锁
|
||
this.userService.MatterLock(srcMatter.UserUuid)
|
||
defer this.userService.MatterUnlock(srcMatter.UserUuid)
|
||
|
||
if !destDirMatter.Dir {
|
||
panic(result.BadRequestI18n(request, i18n.MatterDestinationMustDirectory))
|
||
}
|
||
|
||
destinationPath := destDirMatter.Path + "/" + name
|
||
this.handleOverwrite(request, srcMatter.UserUuid, destinationPath, overwrite)
|
||
|
||
this.copy(request, srcMatter, destDirMatter, name)
|
||
}
|
||
|
||
//将一个matter 重命名为 name
|
||
func (this *MatterService) AtomicRename(request *http.Request, matter *Matter, name string, user *User) {
|
||
|
||
if user == nil {
|
||
panic(result.BadRequest("user cannot be nil"))
|
||
}
|
||
|
||
//操作锁
|
||
this.userService.MatterLock(user.Uuid)
|
||
defer this.userService.MatterUnlock(user.Uuid)
|
||
|
||
//验证参数。
|
||
if name == "" {
|
||
panic(result.BadRequest("name cannot be null"))
|
||
}
|
||
if m, _ := regexp.MatchString(MATTER_NAME_PATTERN, name); m {
|
||
panic(result.BadRequestI18n(request, i18n.MatterNameContainSpecialChars))
|
||
}
|
||
|
||
//文件名不能太长。
|
||
if len(name) > MATTER_NAME_MAX_LENGTH {
|
||
panic(result.BadRequestI18n(request, i18n.MatterNameLengthExceedLimit, len(name), MATTER_NAME_MAX_LENGTH))
|
||
}
|
||
|
||
if name == matter.Name {
|
||
panic(result.BadRequestI18n(request, i18n.MatterNameNoChange))
|
||
}
|
||
|
||
//判断同级文件夹中是否有同名的文件
|
||
count := this.matterDao.CountByUserUuidAndPuuidAndDirAndName(user.Uuid, matter.Puuid, matter.Dir, name)
|
||
|
||
if count > 0 {
|
||
|
||
panic(result.BadRequestI18n(request, i18n.MatterExist, name))
|
||
}
|
||
|
||
if matter.Dir {
|
||
//如果源是文件夹
|
||
|
||
oldAbsolutePath := matter.AbsolutePath()
|
||
absoluteDirPath := util.GetDirOfPath(oldAbsolutePath)
|
||
relativeDirPath := util.GetDirOfPath(matter.Path)
|
||
newAbsolutePath := absoluteDirPath + "/" + name
|
||
|
||
//物理文件一口气移动
|
||
err := os.Rename(oldAbsolutePath, newAbsolutePath)
|
||
this.PanicError(err)
|
||
|
||
//修改数据库中信息
|
||
matter.Name = name
|
||
matter.Path = relativeDirPath + "/" + name
|
||
matter = this.matterDao.Save(matter)
|
||
|
||
//调整该文件夹下文件的Path.
|
||
matters := this.matterDao.ListByPuuidAndUserUuid(matter.Uuid, matter.UserUuid, nil)
|
||
for _, m := range matters {
|
||
this.adjustPath(m, matter)
|
||
}
|
||
|
||
} else {
|
||
//如果源是普通文件
|
||
|
||
oldAbsolutePath := matter.AbsolutePath()
|
||
absoluteDirPath := util.GetDirOfPath(oldAbsolutePath)
|
||
relativeDirPath := util.GetDirOfPath(matter.Path)
|
||
newAbsolutePath := absoluteDirPath + "/" + name
|
||
|
||
//物理文件进行移动
|
||
err := os.Rename(oldAbsolutePath, newAbsolutePath)
|
||
this.PanicError(err)
|
||
|
||
//删除对应的缓存。
|
||
this.imageCacheDao.DeleteByMatterUuid(matter.Uuid)
|
||
|
||
//修改数据库中信息
|
||
matter.Name = name
|
||
matter.Path = relativeDirPath + "/" + name
|
||
matter = this.matterDao.Save(matter)
|
||
|
||
}
|
||
|
||
return
|
||
}
|
||
|
||
//将本地文件映射到蓝眼云盘中去。
|
||
func (this *MatterService) AtomicMirror(request *http.Request, srcPath string, destPath string, overwrite bool, user *User) {
|
||
|
||
if user == nil {
|
||
panic(result.BadRequest("user cannot be nil"))
|
||
}
|
||
|
||
//操作锁
|
||
this.userService.MatterLock(user.Uuid)
|
||
defer this.userService.MatterUnlock(user.Uuid)
|
||
|
||
//验证参数。
|
||
if destPath == "" {
|
||
panic(result.BadRequest("dest cannot be null"))
|
||
}
|
||
|
||
destDirMatter := this.CreateDirectories(request, user, destPath)
|
||
|
||
this.mirror(request, srcPath, destDirMatter, overwrite, user)
|
||
}
|
||
|
||
//将本地文件/文件夹映射到蓝眼云盘中去。
|
||
func (this *MatterService) mirror(request *http.Request, srcPath string, destDirMatter *Matter, overwrite bool, user *User) {
|
||
|
||
if user == nil {
|
||
panic(result.BadRequest("user cannot be nil"))
|
||
}
|
||
|
||
fileStat, err := os.Stat(srcPath)
|
||
if err != nil {
|
||
|
||
if os.IsNotExist(err) {
|
||
panic(result.BadRequest("srcPath %s not exist", srcPath))
|
||
} else {
|
||
|
||
panic(result.BadRequest("srcPath err %s %s", srcPath, err.Error()))
|
||
}
|
||
|
||
}
|
||
|
||
this.logger.Info("mirror srcPath = %s destPath = %s", srcPath, destDirMatter.Path)
|
||
|
||
if fileStat.IsDir() {
|
||
|
||
//判断当前文件夹下，文件是否已经存在了。
|
||
srcDirMatter := this.matterDao.FindByUserUuidAndPuuidAndDirAndName(user.Uuid, destDirMatter.Uuid, true, fileStat.Name())
|
||
|
||
if srcDirMatter == nil {
|
||
srcDirMatter = this.createDirectory(request, destDirMatter, fileStat.Name(), user)
|
||
}
|
||
|
||
fileInfos, err := ioutil.ReadDir(srcPath)
|
||
this.PanicError(err)
|
||
|
||
//递归处理本文件夹下的文件或文件夹
|
||
for _, fileInfo := range fileInfos {
|
||
|
||
path := fmt.Sprintf("%s/%s", srcPath, fileInfo.Name())
|
||
this.mirror(request, path, srcDirMatter, overwrite, user)
|
||
}
|
||
|
||
} else {
|
||
|
||
//判断当前文件夹下，文件是否已经存在了。
|
||
matter := this.matterDao.FindByUserUuidAndPuuidAndDirAndName(user.Uuid, destDirMatter.Uuid, false, fileStat.Name())
|
||
if matter != nil {
|
||
//如果是覆盖，那么删除之前的文件
|
||
if overwrite {
|
||
this.Delete(request, matter)
|
||
} else {
|
||
//直接完成。
|
||
return
|
||
}
|
||
}
|
||
|
||
//准备直接从本地上传了。
|
||
file, err := os.Open(srcPath)
|
||
this.PanicError(err)
|
||
defer func() {
|
||
err := file.Close()
|
||
this.PanicError(err)
|
||
}()
|
||
|
||
this.Upload(request, file, user, destDirMatter, fileStat.Name(), true)
|
||
|
||
}
|
||
|
||
}
|
||
|
||
//根据一个文件夹路径，依次创建，找到最后一个文件夹的matter，如果中途出错，返回err. 如果存在了那就直接返回即可。
|
||
func (this *MatterService) CreateDirectories(request *http.Request, user *User, dirPath string) *Matter {
|
||
|
||
if dirPath == "" {
|
||
panic(`文件夹不能为空`)
|
||
} else if dirPath[0:1] != "/" {
|
||
panic(`文件夹必须以/开头`)
|
||
} else if strings.Index(dirPath, "//") != -1 {
|
||
panic(`文件夹不能出现连续的//`)
|
||
} else if m, _ := regexp.MatchString(MATTER_NAME_PATTERN, dirPath); m {
|
||
panic(result.BadRequestI18n(request, i18n.MatterNameContainSpecialChars))
|
||
}
|
||
|
||
if dirPath == "/" {
|
||
return NewRootMatter(user)
|
||
}
|
||
|
||
//如果最后一个符号为/自动忽略
|
||
if dirPath[len(dirPath)-1] == '/' {
|
||
dirPath = dirPath[:len(dirPath)-1]
|
||
}
|
||
|
||
//递归找寻文件的上级目录uuid.
|
||
folders := strings.Split(dirPath, "/")
|
||
|
||
if len(folders) > MATTER_NAME_MAX_DEPTH {
|
||
panic(result.BadRequestI18n(request, i18n.MatterDepthExceedLimit, len(folders), MATTER_NAME_MAX_DEPTH))
|
||
}
|
||
|
||
var dirMatter *Matter
|
||
for k, name := range folders {
|
||
|
||
//split的第一个元素为空字符串，忽略。
|
||
if k == 0 {
|
||
dirMatter = NewRootMatter(user)
|
||
continue
|
||
}
|
||
|
||
dirMatter = this.createDirectory(request, dirMatter, name, user)
|
||
}
|
||
|
||
return dirMatter
|
||
}
|
||
|
||
//包装某个matter的详情。会把父级依次倒着装进去。如果中途出错，直接抛出异常。
|
||
func (this *MatterService) WrapParentDetail(request *http.Request, matter *Matter) *Matter {
|
||
|
||
if matter == nil {
|
||
panic(result.BadRequest("matter cannot be nil."))
|
||
}
|
||
|
||
//组装file的内容，展示其父组件。
|
||
puuid := matter.Puuid
|
||
tmpMatter := matter
|
||
for puuid != MATTER_ROOT {
|
||
pFile := this.matterDao.CheckByUuid(puuid)
|
||
tmpMatter.Parent = pFile
|
||
tmpMatter = pFile
|
||
puuid = pFile.Puuid
|
||
}
|
||
|
||
return matter
|
||
}
|
||
|
||
//包装某个matter的详情。会把子级依次装进去。如果中途出错，直接抛出异常。
|
||
func (this *MatterService) WrapChildrenDetail(request *http.Request, matter *Matter) {
|
||
|
||
if matter == nil {
|
||
panic(result.BadRequest("matter cannot be nil."))
|
||
}
|
||
|
||
if matter.Dir {
|
||
|
||
children := this.matterDao.ListByPuuidAndUserUuid(matter.Uuid, matter.UserUuid, nil)
|
||
matter.Children = children
|
||
|
||
for _, child := range matter.Children {
|
||
this.WrapChildrenDetail(request, child)
|
||
}
|
||
}
|
||
|
||
}
|
||
|
||
//获取某个文件的详情，会把父级依次倒着装进去。如果中途出错，直接抛出异常。
|
||
func (this *MatterService) Detail(request *http.Request, uuid string) *Matter {
|
||
matter := this.matterDao.CheckByUuid(uuid)
|
||
return this.WrapParentDetail(request, matter)
|
||
}
|
||
|
||
//去指定的url中爬文件
|
||
func (this *MatterService) AtomicCrawl(request *http.Request, url string, filename string, user *User, dirMatter *Matter, privacy bool) *Matter {
|
||
|
||
if user == nil {
|
||
panic(result.BadRequest("user cannot be nil."))
|
||
}
|
||
|
||
//操作锁
|
||
this.userService.MatterLock(user.Uuid)
|
||
defer this.userService.MatterUnlock(user.Uuid)
|
||
|
||
if url == "" || (!strings.HasPrefix(url, "http://") && !strings.HasPrefix(url, "https://")) {
|
||
panic(`url must start with http:// or https://`)
|
||
}
|
||
|
||
if filename == "" {
|
||
panic(result.BadRequest("filename cannot be null."))
|
||
}
|
||
|
||
//从指定的url下载一个文件。参考：https://golangcode.com/download-a-file-from-a-url/
|
||
resp, err := http.Get(url)
|
||
this.PanicError(err)
|
||
|
||
return this.Upload(request, resp.Body, user, dirMatter, filename, privacy)
|
||
}
|
||
|
||
//调整一个Matter的path值
|
||
func (this *MatterService) adjustPath(matter *Matter, parentMatter *Matter) {
|
||
|
||
if matter.Dir {
|
||
//如果源是文件夹
|
||
|
||
//首先调整好自己
|
||
matter.Path = parentMatter.Path + "/" + matter.Name
|
||
matter = this.matterDao.Save(matter)
|
||
|
||
//调整该文件夹下文件的Path.
|
||
matters := this.matterDao.ListByPuuidAndUserUuid(matter.Uuid, matter.UserUuid, nil)
|
||
for _, m := range matters {
|
||
this.adjustPath(m, matter)
|
||
}
|
||
|
||
} else {
|
||
//如果源是普通文件
|
||
|
||
//删除该文件的所有缓存
|
||
this.imageCacheDao.DeleteByMatterUuid(matter.Uuid)
|
||
|
||
//调整path
|
||
matter.Path = parentMatter.Path + "/" + matter.Name
|
||
matter = this.matterDao.Save(matter)
|
||
}
|
||
|
||
}
|