You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
cloudreve/middleware/auth.go

327 lines
7.6 KiB

This file contains ambiguous Unicode characters!

This file contains ambiguous Unicode characters that may be confused with others in your current locale. If your use case is intentional and legitimate, you can safely ignore this warning. Use the Escape button to highlight these characters.

package middleware
import (
"bytes"
"context"
"crypto/md5"
"fmt"
"github.com/HFO4/cloudreve/models"
"github.com/HFO4/cloudreve/pkg/auth"
"github.com/HFO4/cloudreve/pkg/cache"
"github.com/HFO4/cloudreve/pkg/filesystem/driver/onedrive"
"github.com/HFO4/cloudreve/pkg/filesystem/driver/oss"
"github.com/HFO4/cloudreve/pkg/filesystem/driver/upyun"
"github.com/HFO4/cloudreve/pkg/serializer"
"github.com/HFO4/cloudreve/pkg/util"
"github.com/gin-contrib/sessions"
"github.com/gin-gonic/gin"
"github.com/qiniu/api.v7/v7/auth/qbox"
"io/ioutil"
"net/http"
)
// SignRequired 验证请求签名
func SignRequired() gin.HandlerFunc {
return func(c *gin.Context) {
var err error
switch c.Request.Method {
case "PUT", "POST":
err = auth.CheckRequest(auth.General, c.Request)
// TODO 生产环境去掉下一行
//err = nil
default:
err = auth.CheckURI(auth.General, c.Request.URL)
}
if err != nil {
c.JSON(200, serializer.Err(serializer.CodeCheckLogin, err.Error(), err))
c.Abort()
return
}
c.Next()
}
}
// CurrentUser 获取登录用户
func CurrentUser() gin.HandlerFunc {
return func(c *gin.Context) {
session := sessions.Default(c)
uid := session.Get("user_id")
if uid != nil {
user, err := model.GetActiveUserByID(uid)
if err == nil {
c.Set("user", &user)
}
}
c.Next()
}
}
// AuthRequired 需要登录
func AuthRequired() gin.HandlerFunc {
return func(c *gin.Context) {
if user, _ := c.Get("user"); user != nil {
if _, ok := user.(*model.User); ok {
c.Next()
return
}
}
c.JSON(200, serializer.CheckLogin())
c.Abort()
}
}
// WebDAVAuth 验证WebDAV登录及权限
func WebDAVAuth() gin.HandlerFunc {
return func(c *gin.Context) {
// OPTIONS 请求不需要鉴权否则Windows10下无法保存文档
if c.Request.Method == "OPTIONS" {
c.Next()
return
}
username, password, ok := c.Request.BasicAuth()
if !ok {
c.Writer.Header()["WWW-Authenticate"] = []string{`Basic realm="cloudreve"`}
c.Status(http.StatusUnauthorized)
c.Abort()
return
}
expectedUser, err := model.GetUserByEmail(username)
if err != nil {
c.Status(http.StatusUnauthorized)
c.Abort()
return
}
// 密码正确?
webdav, err := model.GetWebdavByPassword(password, expectedUser.ID)
if err != nil {
c.Status(http.StatusUnauthorized)
c.Abort()
return
}
// 用户组已启用WebDAV
if !expectedUser.Group.WebDAVEnabled {
c.Status(http.StatusForbidden)
c.Abort()
return
}
c.Set("user", &expectedUser)
c.Set("webdav", webdav)
c.Next()
}
}
// uploadCallbackCheck 对上传回调请求的 callback key 进行验证,如果成功则返回上传用户
func uploadCallbackCheck(c *gin.Context) (serializer.Response, *model.User) {
// 验证 Callback Key
callbackKey := c.Param("key")
if callbackKey == "" {
return serializer.ParamErr("Callback Key 不能为空", nil), nil
}
callbackSessionRaw, exist := cache.Get("callback_" + callbackKey)
if !exist {
return serializer.ParamErr("回调会话不存在或已过期", nil), nil
}
callbackSession := callbackSessionRaw.(serializer.UploadSession)
c.Set("callbackSession", &callbackSession)
// 清理回调会话
_ = cache.Deletes([]string{callbackKey}, "callback_")
// 查找用户
user, err := model.GetActiveUserByID(callbackSession.UID)
if err != nil {
return serializer.Err(serializer.CodeCheckLogin, "找不到用户", err), nil
}
c.Set("user", &user)
return serializer.Response{}, &user
}
// RemoteCallbackAuth 远程回调签名验证
func RemoteCallbackAuth() gin.HandlerFunc {
return func(c *gin.Context) {
// 验证key并查找用户
resp, user := uploadCallbackCheck(c)
if resp.Code != 0 {
c.JSON(200, resp)
c.Abort()
return
}
// 验证签名
authInstance := auth.HMACAuth{SecretKey: []byte(user.Policy.SecretKey)}
if err := auth.CheckRequest(authInstance, c.Request); err != nil {
c.JSON(200, serializer.Err(serializer.CodeCheckLogin, err.Error(), err))
c.Abort()
return
}
c.Next()
}
}
// QiniuCallbackAuth 七牛回调签名验证
func QiniuCallbackAuth() gin.HandlerFunc {
return func(c *gin.Context) {
// 验证key并查找用户
resp, user := uploadCallbackCheck(c)
if resp.Code != 0 {
c.JSON(401, serializer.QiniuCallbackFailed{Error: resp.Msg})
c.Abort()
return
}
// 验证回调是否来自qiniu
mac := qbox.NewMac(user.Policy.AccessKey, user.Policy.SecretKey)
ok, err := mac.VerifyCallback(c.Request)
if err != nil {
util.Log().Debug("无法验证回调请求,%s", err)
c.JSON(401, serializer.QiniuCallbackFailed{Error: "无法验证回调请求"})
c.Abort()
return
}
if !ok {
c.JSON(401, serializer.QiniuCallbackFailed{Error: "回调签名无效"})
c.Abort()
return
}
c.Next()
}
}
// OSSCallbackAuth 阿里云OSS回调签名验证
func OSSCallbackAuth() gin.HandlerFunc {
return func(c *gin.Context) {
// 验证key并查找用户
resp, _ := uploadCallbackCheck(c)
if resp.Code != 0 {
c.JSON(401, serializer.QiniuCallbackFailed{Error: resp.Msg})
c.Abort()
return
}
err := oss.VerifyCallbackSignature(c.Request)
if err != nil {
util.Log().Debug("回调签名验证失败,%s", err)
c.JSON(401, serializer.QiniuCallbackFailed{Error: "回调签名验证失败"})
c.Abort()
return
}
c.Next()
}
}
// UpyunCallbackAuth 又拍云回调签名验证
func UpyunCallbackAuth() gin.HandlerFunc {
return func(c *gin.Context) {
// 验证key并查找用户
resp, user := uploadCallbackCheck(c)
if resp.Code != 0 {
c.JSON(401, serializer.QiniuCallbackFailed{Error: resp.Msg})
c.Abort()
return
}
// 获取请求正文
body, err := ioutil.ReadAll(c.Request.Body)
c.Request.Body.Close()
if err != nil {
c.JSON(401, serializer.QiniuCallbackFailed{Error: err.Error()})
c.Abort()
return
}
c.Request.Body = ioutil.NopCloser(bytes.NewReader(body))
// 准备验证Upyun回调签名
handler := upyun.Driver{Policy: &user.Policy}
contentMD5 := c.Request.Header.Get("Content-Md5")
date := c.Request.Header.Get("Date")
actualSignature := c.Request.Header.Get("Authorization")
// 计算正文MD5
actualContentMD5 := fmt.Sprintf("%x", md5.Sum(body))
if actualContentMD5 != contentMD5 {
c.JSON(401, serializer.QiniuCallbackFailed{Error: "MD5不一致"})
c.Abort()
return
}
// 计算理论签名
signature := handler.Sign(context.Background(), []string{
"POST",
c.Request.URL.Path,
date,
contentMD5,
})
// 对比签名
if signature != actualSignature {
c.JSON(401, serializer.QiniuCallbackFailed{Error: "鉴权失败"})
c.Abort()
return
}
c.Next()
}
}
// OneDriveCallbackAuth OneDrive回调签名验证
// TODO 解耦
func OneDriveCallbackAuth() gin.HandlerFunc {
return func(c *gin.Context) {
// 验证key并查找用户
resp, _ := uploadCallbackCheck(c)
if resp.Code != 0 {
c.JSON(401, serializer.QiniuCallbackFailed{Error: resp.Msg})
c.Abort()
return
}
// 发送回调结束信号
onedrive.FinishCallback(c.Param("key"))
c.Next()
}
}
// COSCallbackAuth 腾讯云COS回调签名验证
// TODO 解耦 测试
func COSCallbackAuth() gin.HandlerFunc {
return func(c *gin.Context) {
// 验证key并查找用户
resp, _ := uploadCallbackCheck(c)
if resp.Code != 0 {
c.JSON(401, serializer.QiniuCallbackFailed{Error: resp.Msg})
c.Abort()
return
}
c.Next()
}
}
// IsAdmin 必须为管理员用户组
func IsAdmin() gin.HandlerFunc {
return func(c *gin.Context) {
user, _ := c.Get("user")
if user.(*model.User).Group.ID != 1 {
c.JSON(200, serializer.Err(serializer.CodeAdminRequired, "您不是管理组成员", nil))
c.Abort()
return
}
c.Next()
}
}