mirror of
https://github.com/cloudreve/cloudreve.git
synced 2025-10-31 16:49:03 +08:00
313 lines
7.9 KiB
Go
313 lines
7.9 KiB
Go
package filesystem
|
||
|
||
import (
|
||
"context"
|
||
"errors"
|
||
"github.com/HFO4/cloudreve/models"
|
||
"github.com/HFO4/cloudreve/pkg/auth"
|
||
"github.com/HFO4/cloudreve/pkg/conf"
|
||
"github.com/HFO4/cloudreve/pkg/filesystem/driver/cos"
|
||
"github.com/HFO4/cloudreve/pkg/filesystem/driver/local"
|
||
"github.com/HFO4/cloudreve/pkg/filesystem/driver/onedrive"
|
||
"github.com/HFO4/cloudreve/pkg/filesystem/driver/oss"
|
||
"github.com/HFO4/cloudreve/pkg/filesystem/driver/qiniu"
|
||
"github.com/HFO4/cloudreve/pkg/filesystem/driver/remote"
|
||
"github.com/HFO4/cloudreve/pkg/filesystem/driver/upyun"
|
||
"github.com/HFO4/cloudreve/pkg/filesystem/response"
|
||
"github.com/HFO4/cloudreve/pkg/request"
|
||
"github.com/HFO4/cloudreve/pkg/serializer"
|
||
"github.com/gin-gonic/gin"
|
||
cossdk "github.com/tencentyun/cos-go-sdk-v5"
|
||
"io"
|
||
"net/http"
|
||
"net/url"
|
||
"sync"
|
||
)
|
||
|
||
// FSPool 文件系统资源池
|
||
var FSPool = sync.Pool{
|
||
New: func() interface{} {
|
||
return &FileSystem{}
|
||
},
|
||
}
|
||
|
||
// FileHeader 上传来的文件数据处理器
|
||
type FileHeader interface {
|
||
io.Reader
|
||
io.Closer
|
||
GetSize() uint64
|
||
GetMIMEType() string
|
||
GetFileName() string
|
||
GetVirtualPath() string
|
||
}
|
||
|
||
// Handler 存储策略适配器
|
||
type Handler interface {
|
||
// 上传文件, dst为文件存储路径，size 为文件大小。上下文关闭
|
||
// 时，应取消上传并清理临时文件
|
||
Put(ctx context.Context, file io.ReadCloser, dst string, size uint64) error
|
||
|
||
// 删除一个或多个给定路径的文件，返回删除失败的文件路径列表及错误
|
||
Delete(ctx context.Context, files []string) ([]string, error)
|
||
|
||
// 获取文件内容
|
||
Get(ctx context.Context, path string) (response.RSCloser, error)
|
||
|
||
// 获取缩略图，可直接在ContentResponse中返回文件数据流，也可指
|
||
// 定为重定向
|
||
Thumb(ctx context.Context, path string) (*response.ContentResponse, error)
|
||
|
||
// 获取外链/下载地址，
|
||
// url - 站点本身地址,
|
||
// isDownload - 是否直接下载
|
||
Source(ctx context.Context, path string, url url.URL, ttl int64, isDownload bool, speed int) (string, error)
|
||
|
||
// Token 获取有效期为ttl的上传凭证和签名，同时回调会话有效期为sessionTTL
|
||
Token(ctx context.Context, ttl int64, callbackKey string) (serializer.UploadCredential, error)
|
||
|
||
// List 递归列取远程端path路径下文件、目录，不包含path本身，
|
||
// 返回的对象路径以path作为起始根目录.
|
||
// recursive - 是否递归列出
|
||
List(ctx context.Context, path string, recursive bool) ([]response.Object, error)
|
||
}
|
||
|
||
// FileSystem 管理文件的文件系统
|
||
type FileSystem struct {
|
||
// 文件系统所有者
|
||
User *model.User
|
||
// 操作文件使用的存储策略
|
||
Policy *model.Policy
|
||
// 当前正在处理的文件对象
|
||
FileTarget []model.File
|
||
// 当前正在处理的目录对象
|
||
DirTarget []model.Folder
|
||
// 相对根目录
|
||
Root *model.Folder
|
||
// 互斥锁
|
||
Lock sync.Mutex
|
||
|
||
/*
|
||
钩子函数
|
||
*/
|
||
Hooks map[string][]Hook
|
||
|
||
/*
|
||
文件系统处理适配器
|
||
*/
|
||
Handler Handler
|
||
}
|
||
|
||
// getEmptyFS 从pool中获取新的FileSystem
|
||
func getEmptyFS() *FileSystem {
|
||
fs := FSPool.Get().(*FileSystem)
|
||
return fs
|
||
}
|
||
|
||
// Recycle 回收FileSystem资源
|
||
func (fs *FileSystem) Recycle() {
|
||
fs.reset()
|
||
FSPool.Put(fs)
|
||
}
|
||
|
||
// reset 重设文件系统，以便回收使用
|
||
func (fs *FileSystem) reset() {
|
||
fs.User = nil
|
||
fs.CleanTargets()
|
||
fs.Policy = nil
|
||
fs.Hooks = nil
|
||
fs.Handler = nil
|
||
fs.Root = nil
|
||
fs.Lock = sync.Mutex{}
|
||
}
|
||
|
||
// NewFileSystem 初始化一个文件系统
|
||
func NewFileSystem(user *model.User) (*FileSystem, error) {
|
||
fs := getEmptyFS()
|
||
fs.User = user
|
||
// 分配存储策略适配器
|
||
err := fs.DispatchHandler()
|
||
|
||
// TODO 分配默认钩子
|
||
return fs, err
|
||
}
|
||
|
||
// NewAnonymousFileSystem 初始化匿名文件系统
|
||
func NewAnonymousFileSystem() (*FileSystem, error) {
|
||
fs := getEmptyFS()
|
||
fs.User = &model.User{}
|
||
|
||
// 如果是主机模式下，则为匿名文件系统分配游客用户组
|
||
if conf.SystemConfig.Mode == "master" {
|
||
anonymousGroup, err := model.GetGroupByID(3)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
fs.User.Group = anonymousGroup
|
||
} else {
|
||
// 从机模式下，分配本地策略处理器
|
||
fs.Handler = local.Driver{}
|
||
}
|
||
|
||
return fs, nil
|
||
}
|
||
|
||
// DispatchHandler 根据存储策略分配文件适配器
|
||
// TODO 完善测试
|
||
func (fs *FileSystem) DispatchHandler() error {
|
||
var policyType string
|
||
var currentPolicy *model.Policy
|
||
|
||
if fs.Policy == nil {
|
||
// 如果没有具体指定，就是用用户当前存储策略
|
||
policyType = fs.User.Policy.Type
|
||
currentPolicy = &fs.User.Policy
|
||
} else {
|
||
policyType = fs.Policy.Type
|
||
currentPolicy = fs.Policy
|
||
}
|
||
|
||
switch policyType {
|
||
case "mock", "anonymous":
|
||
return nil
|
||
case "local":
|
||
fs.Handler = local.Driver{
|
||
Policy: currentPolicy,
|
||
}
|
||
return nil
|
||
case "remote":
|
||
fs.Handler = remote.Driver{
|
||
Policy: currentPolicy,
|
||
Client: request.HTTPClient{},
|
||
AuthInstance: auth.HMACAuth{[]byte(currentPolicy.SecretKey)},
|
||
}
|
||
return nil
|
||
case "qiniu":
|
||
fs.Handler = qiniu.Driver{
|
||
Policy: currentPolicy,
|
||
}
|
||
return nil
|
||
case "oss":
|
||
fs.Handler = oss.Driver{
|
||
Policy: currentPolicy,
|
||
HTTPClient: request.HTTPClient{},
|
||
}
|
||
return nil
|
||
case "upyun":
|
||
fs.Handler = upyun.Driver{
|
||
Policy: currentPolicy,
|
||
}
|
||
return nil
|
||
case "onedrive":
|
||
client, err := onedrive.NewClient(currentPolicy)
|
||
fs.Handler = onedrive.Driver{
|
||
Policy: currentPolicy,
|
||
Client: client,
|
||
HTTPClient: request.HTTPClient{},
|
||
}
|
||
return err
|
||
case "cos":
|
||
u, _ := url.Parse(currentPolicy.Server)
|
||
b := &cossdk.BaseURL{BucketURL: u}
|
||
fs.Handler = cos.Driver{
|
||
Policy: currentPolicy,
|
||
Client: cossdk.NewClient(b, &http.Client{
|
||
Transport: &cossdk.AuthorizationTransport{
|
||
SecretID: currentPolicy.AccessKey,
|
||
SecretKey: currentPolicy.SecretKey,
|
||
},
|
||
}),
|
||
HTTPClient: request.HTTPClient{},
|
||
}
|
||
return nil
|
||
default:
|
||
return ErrUnknownPolicyType
|
||
}
|
||
}
|
||
|
||
// NewFileSystemFromContext 从gin.Context创建文件系统
|
||
func NewFileSystemFromContext(c *gin.Context) (*FileSystem, error) {
|
||
user, exist := c.Get("user")
|
||
if !exist {
|
||
return NewAnonymousFileSystem()
|
||
}
|
||
fs, err := NewFileSystem(user.(*model.User))
|
||
return fs, err
|
||
}
|
||
|
||
// NewFileSystemFromCallback 从gin.Context创建回调用文件系统
|
||
func NewFileSystemFromCallback(c *gin.Context) (*FileSystem, error) {
|
||
fs, err := NewFileSystemFromContext(c)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
|
||
// 获取回调会话
|
||
callbackSessionRaw, ok := c.Get("callbackSession")
|
||
if !ok {
|
||
return nil, errors.New("找不到回调会话")
|
||
}
|
||
callbackSession := callbackSessionRaw.(*serializer.UploadSession)
|
||
|
||
// 重新指向上传策略
|
||
policy, err := model.GetPolicyByID(callbackSession.PolicyID)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
fs.Policy = &policy
|
||
fs.User.Policy = policy
|
||
err = fs.DispatchHandler()
|
||
|
||
return fs, err
|
||
}
|
||
|
||
// SetTargetFile 设置当前处理的目标文件
|
||
func (fs *FileSystem) SetTargetFile(files *[]model.File) {
|
||
if len(fs.FileTarget) == 0 {
|
||
fs.FileTarget = *files
|
||
} else {
|
||
fs.FileTarget = append(fs.FileTarget, *files...)
|
||
}
|
||
|
||
}
|
||
|
||
// SetTargetDir 设置当前处理的目标目录
|
||
func (fs *FileSystem) SetTargetDir(dirs *[]model.Folder) {
|
||
if len(fs.DirTarget) == 0 {
|
||
fs.DirTarget = *dirs
|
||
} else {
|
||
fs.DirTarget = append(fs.DirTarget, *dirs...)
|
||
}
|
||
|
||
}
|
||
|
||
// SetTargetFileByIDs 根据文件ID设置目标文件，忽略用户ID
|
||
func (fs *FileSystem) SetTargetFileByIDs(ids []uint) error {
|
||
files, err := model.GetFilesByIDs(ids, 0)
|
||
if err != nil || len(files) == 0 {
|
||
return ErrFileExisted.WithError(err)
|
||
}
|
||
fs.SetTargetFile(&files)
|
||
return nil
|
||
}
|
||
|
||
// SetTargetByInterface 根据 model.File 或者 model.Folder 设置目标对象
|
||
// TODO 测试
|
||
func (fs *FileSystem) SetTargetByInterface(target interface{}) error {
|
||
if file, ok := target.(*model.File); ok {
|
||
fs.SetTargetFile(&[]model.File{*file})
|
||
return nil
|
||
}
|
||
if folder, ok := target.(*model.Folder); ok {
|
||
fs.SetTargetDir(&[]model.Folder{*folder})
|
||
return nil
|
||
}
|
||
|
||
return ErrObjectNotExist
|
||
}
|
||
|
||
// CleanTargets 清空目标
|
||
func (fs *FileSystem) CleanTargets() {
|
||
fs.FileTarget = fs.FileTarget[:0]
|
||
fs.DirTarget = fs.DirTarget[:0]
|
||
}
|