mirror
/
gitea
mirror of https://github.com/go-gitea/gitea
2
0
Fork 0
Code Issues Releases Wiki Activity

Fix SSH auth lfs locks (#3152)

Browse Source 
* Fix SSH auth LFS locks

* Activate SSH/lock test

* Remove debug

* Follow @lunny recommendation for AfterLoad method
pull/3399/head^2
Antoine GIRARD 7 years ago committed by Lauris BH
parent 97fe773491
commit 9e842c8a72
7 changed files with 162 additions and 143 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Show Stats Download Patch File Download Diff File
  1. 8
      cmd/serv.go
  2. 8
      integrations/api_repo_lfs_locks_test.go
  3. 4
      integrations/git_test.go
  4. 19
      models/error.go
  5. 55
      models/lfs_lock.go
  6. 78
      modules/lfs/locks.go
  7. 133
      modules/lfs/server.go

8
cmd/serv.go
Unescape View File

@ -259,12 +259,16 @@ func runServ(c *cli.Context) error {
url := fmt.Sprintf("%s%s/%s.git/info/lfs", setting.AppURL, username, repo.Name)
now := time.Now()
token := jwt.NewWithClaims(jwt.SigningMethodHS256, jwt.MapClaims{
claims := jwt.MapClaims{
"repo": repo.ID,
"op": lfsVerb,
"exp": now.Add(5 * time.Minute).Unix(),
"nbf": now.Unix(),
})
}
if user != nil {
claims["user"] = user.ID
}
token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
// Sign and get the complete encoded token as a string using the secret
tokenString, err := token.SignedString(setting.LFS.JWTSecretBytes)

8
integrations/api_repo_lfs_locks_test.go
Unescape View File

@ -41,10 +41,10 @@ func TestAPILFSLocksNotLogin(t *testing.T) {
req := NewRequestf(t, "GET", "/%s/%s.git/info/lfs/locks", user.Name, repo.Name)
req.Header.Set("Accept", "application/vnd.git-lfs+json")
resp := MakeRequest(t, req, http.StatusForbidden)
resp := MakeRequest(t, req, http.StatusUnauthorized)
var lfsLockError api.LFSLockError
DecodeJSON(t, resp, &lfsLockError)
assert.Equal(t, "You must have pull access to list locks : User undefined doesn't have rigth to list for lfs lock [rid: 1]", lfsLockError.Message)
assert.Equal(t, "Unauthorized", lfsLockError.Message)
}
func TestAPILFSLocksLogged(t *testing.T) {
@ -68,8 +68,8 @@ func TestAPILFSLocksLogged(t *testing.T) {
{user: user2, repo: repo1, path: "path/test", httpResult: http.StatusConflict},
{user: user2, repo: repo1, path: "Foo/BaR.zip", httpResult: http.StatusConflict},
{user: user2, repo: repo1, path: "Foo/Test/../subFOlder/../Relative/../BaR.zip", httpResult: http.StatusConflict},
{user: user4, repo: repo1, path: "FoO/BaR.zip", httpResult: http.StatusForbidden},
{user: user4, repo: repo1, path: "path/test-user4", httpResult: http.StatusForbidden},
{user: user4, repo: repo1, path: "FoO/BaR.zip", httpResult: http.StatusUnauthorized},
{user: user4, repo: repo1, path: "path/test-user4", httpResult: http.StatusUnauthorized},
{user: user2, repo: repo1, path: "patH/Test-user4", httpResult: http.StatusCreated, addTime: []int{0}},
{user: user2, repo: repo1, path: "some/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/long/path", httpResult: http.StatusCreated, addTime: []int{0}},

4
integrations/git_test.go
Unescape View File

@ -214,11 +214,9 @@ func TestGit(t *testing.T) {
commitAndPush(t, bigSize, dstPath)
})
})
/* Failed without #3152. TODO activate with fix.
t.Run("Locks", func(t *testing.T) {
lockTest(t, u.String(), dstPath)
lockTest(t, u.String(), dstPath)
})
*/
})
})
})

19
models/error.go
Unescape View File

@ -530,21 +530,24 @@ func (err ErrLFSLockNotExist) Error() string {
return fmt.Sprintf("lfs lock does not exist [id: %d, rid: %d, path: %s]", err.ID, err.RepoID, err.Path)
}
// ErrLFSLockUnauthorizedAction represents a "LFSLockUnauthorizedAction" kind of error.
type ErrLFSLockUnauthorizedAction struct {
// ErrLFSUnauthorizedAction represents a "LFSUnauthorizedAction" kind of error.
type ErrLFSUnauthorizedAction struct {
RepoID int64
UserName string
Action string
Mode AccessMode
}
// IsErrLFSLockUnauthorizedAction checks if an error is a ErrLFSLockUnauthorizedAction.
func IsErrLFSLockUnauthorizedAction(err error) bool {
_, ok := err.(ErrLFSLockUnauthorizedAction)
// IsErrLFSUnauthorizedAction checks if an error is a ErrLFSUnauthorizedAction.
func IsErrLFSUnauthorizedAction(err error) bool {
_, ok := err.(ErrLFSUnauthorizedAction)
return ok
}
func (err ErrLFSLockUnauthorizedAction) Error() string {
return fmt.Sprintf("User %s doesn't have rigth to %s for lfs lock [rid: %d]", err.UserName, err.Action, err.RepoID)
func (err ErrLFSUnauthorizedAction) Error() string {
if err.Mode == AccessModeWrite {
return fmt.Sprintf("User %s doesn't have write access for lfs lock [rid: %d]", err.UserName, err.RepoID)
}
return fmt.Sprintf("User %s doesn't have read access for lfs lock [rid: %d]", err.UserName, err.RepoID)
}
// ErrLFSLockAlreadyExist represents a "LFSLockAlreadyExist" kind of error.

55
models/lfs_lock.go
Unescape View File

@ -11,28 +11,40 @@ import (
"strings"
"time"
"code.gitea.io/gitea/modules/log"
api "code.gitea.io/sdk/gitea"
"github.com/go-xorm/xorm"
)
// LFSLock represents a git lfs lock of repository.
type LFSLock struct {
ID int64 `xorm:"pk autoincr"`
RepoID int64 `xorm:"INDEX NOT NULL"`
Owner *User `xorm:"-"`
OwnerID int64 `xorm:"INDEX NOT NULL"`
Path string `xorm:"TEXT"`
Created time.Time `xorm:"created"`
ID int64 `xorm:"pk autoincr"`
Repo *Repository `xorm:"-"`
RepoID int64 `xorm:"INDEX NOT NULL"`
Owner *User `xorm:"-"`
OwnerID int64 `xorm:"INDEX NOT NULL"`
Path string `xorm:"TEXT"`
Created time.Time `xorm:"created"`
}
// BeforeInsert is invoked from XORM before inserting an object of this type.
func (l *LFSLock) BeforeInsert() {
l.OwnerID = l.Owner.ID
l.RepoID = l.Repo.ID
l.Path = cleanPath(l.Path)
}
// AfterLoad is invoked from XORM after setting the values of all fields of this object.
func (l *LFSLock) AfterLoad() {
l.Owner, _ = GetUserByID(l.OwnerID)
func (l *LFSLock) AfterLoad(session *xorm.Session) {
var err error
l.Owner, err = getUserByID(session, l.OwnerID)
if err != nil {
log.Error(2, "LFS lock AfterLoad failed OwnerId[%d] not found: %v", l.OwnerID, err)
}
l.Repo, err = getRepositoryByID(session, l.RepoID)
if err != nil {
log.Error(2, "LFS lock AfterLoad failed RepoId[%d] not found: %v", l.RepoID, err)
}
}
func cleanPath(p string) string {
@ -53,12 +65,12 @@ func (l *LFSLock) APIFormat() *api.LFSLock {
// CreateLFSLock creates a new lock.
func CreateLFSLock(lock *LFSLock) (*LFSLock, error) {
err := CheckLFSAccessForRepo(lock.Owner, lock.RepoID, "create")
err := CheckLFSAccessForRepo(lock.Owner, lock.Repo, AccessModeWrite)
if err != nil {
return nil, err
}
l, err := GetLFSLock(lock.RepoID, lock.Path)
l, err := GetLFSLock(lock.Repo, lock.Path)
if err == nil {
return l, ErrLFSLockAlreadyExist{lock.RepoID, lock.Path}
}
@ -71,15 +83,15 @@ func CreateLFSLock(lock *LFSLock) (*LFSLock, error) {
}
// GetLFSLock returns release by given path.
func GetLFSLock(repoID int64, path string) (*LFSLock, error) {
func GetLFSLock(repo *Repository, path string) (*LFSLock, error) {
path = cleanPath(path)
rel := &LFSLock{RepoID: repoID}
rel := &LFSLock{RepoID: repo.ID}
has, err := x.Where("lower(path) = ?", strings.ToLower(path)).Get(rel)
if err != nil {
return nil, err
}
if !has {
return nil, ErrLFSLockNotExist{0, repoID, path}
return nil, ErrLFSLockNotExist{0, repo.ID, path}
}
return rel, nil
}
@ -109,7 +121,7 @@ func DeleteLFSLockByID(id int64, u *User, force bool) (*LFSLock, error) {
return nil, err
}
err = CheckLFSAccessForRepo(u, lock.RepoID, "delete")
err = CheckLFSAccessForRepo(u, lock.Repo, AccessModeWrite)
if err != nil {
return nil, err
}
@ -123,24 +135,15 @@ func DeleteLFSLockByID(id int64, u *User, force bool) (*LFSLock, error) {
}
//CheckLFSAccessForRepo check needed access mode base on action
func CheckLFSAccessForRepo(u *User, repoID int64, action string) error {
func CheckLFSAccessForRepo(u *User, repo *Repository, mode AccessMode) error {
if u == nil {
return ErrLFSLockUnauthorizedAction{repoID, "undefined", action}
}
mode := AccessModeRead
if action == "create" || action == "delete" || action == "verify" {
mode = AccessModeWrite
}
repo, err := GetRepositoryByID(repoID)
if err != nil {
return err
return ErrLFSUnauthorizedAction{repo.ID, "undefined", mode}
}
has, err := HasAccess(u.ID, repo, mode)
if err != nil {
return err
} else if !has {
return ErrLFSLockUnauthorizedAction{repo.ID, u.DisplayName(), action}
return ErrLFSUnauthorizedAction{repo.ID, u.DisplayName(), mode}
}
return nil
}

78
modules/lfs/locks.go
Unescape View File

@ -13,24 +13,35 @@ import (
"code.gitea.io/gitea/modules/context"
"code.gitea.io/gitea/modules/setting"
api "code.gitea.io/sdk/gitea"
"gopkg.in/macaron.v1"
)
func checkRequest(req macaron.Request, post bool) int {
//checkIsValidRequest check if it a valid request in case of bad request it write the response to ctx.
func checkIsValidRequest(ctx *context.Context, post bool) bool {
if !setting.LFS.StartServer {
return 404
writeStatus(ctx, 404)
return false
}
if !MetaMatcher(ctx.Req) {
writeStatus(ctx, 400)
return false
}
if !MetaMatcher(req) {
return 400
if !ctx.IsSigned {
user, _, _, err := parseToken(ctx.Req.Header.Get("Authorization"))
if err != nil {
ctx.Resp.Header().Set("WWW-Authenticate", "Basic realm=gitea-lfs")
writeStatus(ctx, 401)
return false
}
ctx.User = user
}
if post {
mediaParts := strings.Split(req.Header.Get("Content-Type"), ";")
mediaParts := strings.Split(ctx.Req.Header.Get("Content-Type"), ";")
if mediaParts[0] != metaMediaType {
return 400
writeStatus(ctx, 400)
return false
}
}
return 200
return true
}
func handleLockListOut(ctx *context.Context, lock *models.LFSLock, err error) {
@ -59,17 +70,16 @@ func handleLockListOut(ctx *context.Context, lock *models.LFSLock, err error) {
// GetListLockHandler list locks
func GetListLockHandler(ctx *context.Context) {
status := checkRequest(ctx.Req, false)
if status != 200 {
writeStatus(ctx, status)
if !checkIsValidRequest(ctx, false) {
return
}
ctx.Resp.Header().Set("Content-Type", metaMediaType)
err := models.CheckLFSAccessForRepo(ctx.User, ctx.Repo.Repository.ID, "list")
err := models.CheckLFSAccessForRepo(ctx.User, ctx.Repo.Repository, models.AccessModeRead)
if err != nil {
if models.IsErrLFSLockUnauthorizedAction(err) {
ctx.JSON(403, api.LFSLockError{
if models.IsErrLFSUnauthorizedAction(err) {
ctx.Resp.Header().Set("WWW-Authenticate", "Basic realm=gitea-lfs")
ctx.JSON(401, api.LFSLockError{
Message: "You must have pull access to list locks : " + err.Error(),
})
return
@ -96,7 +106,7 @@ func GetListLockHandler(ctx *context.Context) {
path := ctx.Query("path")
if path != "" { //Case where we request a specific id
lock, err := models.GetLFSLock(ctx.Repo.Repository.ID, path)
lock, err := models.GetLFSLock(ctx.Repo.Repository, path)
handleLockListOut(ctx, lock, err)
return
}
@ -120,9 +130,7 @@ func GetListLockHandler(ctx *context.Context) {
// PostLockHandler create lock
func PostLockHandler(ctx *context.Context) {
status := checkRequest(ctx.Req, true)
if status != 200 {
writeStatus(ctx, status)
if !checkIsValidRequest(ctx, false) {
return
}
ctx.Resp.Header().Set("Content-Type", metaMediaType)
@ -136,9 +144,9 @@ func PostLockHandler(ctx *context.Context) {
}
lock, err := models.CreateLFSLock(&models.LFSLock{
RepoID: ctx.Repo.Repository.ID,
Path: req.Path,
Owner: ctx.User,
Repo: ctx.Repo.Repository,
Path: req.Path,
Owner: ctx.User,
})
if err != nil {
if models.IsErrLFSLockAlreadyExist(err) {
@ -148,8 +156,9 @@ func PostLockHandler(ctx *context.Context) {
})
return
}
if models.IsErrLFSLockUnauthorizedAction(err) {
ctx.JSON(403, api.LFSLockError{
if models.IsErrLFSUnauthorizedAction(err) {
ctx.Resp.Header().Set("WWW-Authenticate", "Basic realm=gitea-lfs")
ctx.JSON(401, api.LFSLockError{
Message: "You must have push access to create locks : " + err.Error(),
})
return
@ -164,18 +173,16 @@ func PostLockHandler(ctx *context.Context) {
// VerifyLockHandler list locks for verification
func VerifyLockHandler(ctx *context.Context) {
status := checkRequest(ctx.Req, true)
if status != 200 {
writeStatus(ctx, status)
if !checkIsValidRequest(ctx, false) {
return
}
ctx.Resp.Header().Set("Content-Type", metaMediaType)
err := models.CheckLFSAccessForRepo(ctx.User, ctx.Repo.Repository.ID, "verify")
err := models.CheckLFSAccessForRepo(ctx.User, ctx.Repo.Repository, models.AccessModeWrite)
if err != nil {
if models.IsErrLFSLockUnauthorizedAction(err) {
ctx.JSON(403, api.LFSLockError{
if models.IsErrLFSUnauthorizedAction(err) {
ctx.Resp.Header().Set("WWW-Authenticate", "Basic realm=gitea-lfs")
ctx.JSON(401, api.LFSLockError{
Message: "You must have push access to verify locks : " + err.Error(),
})
return
@ -211,9 +218,7 @@ func VerifyLockHandler(ctx *context.Context) {
// UnLockHandler delete locks
func UnLockHandler(ctx *context.Context) {
status := checkRequest(ctx.Req, true)
if status != 200 {
writeStatus(ctx, status)
if !checkIsValidRequest(ctx, false) {
return
}
ctx.Resp.Header().Set("Content-Type", metaMediaType)
@ -228,8 +233,9 @@ func UnLockHandler(ctx *context.Context) {
lock, err := models.DeleteLFSLockByID(ctx.ParamsInt64("lid"), ctx.User, req.Force)
if err != nil {
if models.IsErrLFSLockUnauthorizedAction(err) {
ctx.JSON(403, api.LFSLockError{
if models.IsErrLFSUnauthorizedAction(err) {
ctx.Resp.Header().Set("WWW-Authenticate", "Basic realm=gitea-lfs")
ctx.JSON(401, api.LFSLockError{
Message: "You must have push access to delete locks : " + err.Error(),
})
return

133
modules/lfs/server.go
Unescape View File

@ -473,7 +473,6 @@ func logRequest(r macaron.Request, status int) {
// authenticate uses the authorization string to determine whether
// or not to proceed. This server assumes an HTTP Basic auth format.
func authenticate(ctx *context.Context, repository *models.Repository, authorization string, requireWrite bool) bool {
accessMode := models.AccessModeRead
if requireWrite {
accessMode = models.AccessModeWrite
@ -482,86 +481,92 @@ func authenticate(ctx *context.Context, repository *models.Repository, authoriza
if !repository.IsPrivate && !requireWrite {
return true
}
if ctx.IsSigned {
accessCheck, _ := models.HasAccess(ctx.User.ID, repository, accessMode)
return accessCheck
}
if authorization == "" {
return false
}
if authenticateToken(repository, authorization, requireWrite) {
return true
}
if !strings.HasPrefix(authorization, "Basic ") {
return false
}
c, err := base64.StdEncoding.DecodeString(strings.TrimPrefix(authorization, "Basic "))
user, repo, opStr, err := parseToken(authorization)
if err != nil {
return false
}
cs := string(c)
i := strings.IndexByte(cs, ':')
if i < 0 {
return false
}
user, password := cs[:i], cs[i+1:]
userModel, err := models.GetUserByName(user)
if err != nil {
return false
ctx.User = user
if opStr == "basic" {
accessCheck, _ := models.HasAccess(ctx.User.ID, repository, accessMode)
return accessCheck
}
if !userModel.ValidatePassword(password) {
return false
if repository.ID == repo.ID {
if requireWrite && opStr != "upload" {
return false
}
return true
}
accessCheck, _ := models.HasAccess(userModel.ID, repository, accessMode)
return accessCheck
return false
}
func authenticateToken(repository *models.Repository, authorization string, requireWrite bool) bool {
if !strings.HasPrefix(authorization, "Bearer ") {
return false
}
token, err := jwt.Parse(authorization[7:], func(t *jwt.Token) (interface{}, error) {
if _, ok := t.Method.(*jwt.SigningMethodHMAC); !ok {
return nil, fmt.Errorf("unexpected signing method: %v", t.Header["alg"])
func parseToken(authorization string) (*models.User, *models.Repository, string, error) {
if authorization == "" {
return nil, nil, "unknown", fmt.Errorf("No token")
}
if strings.HasPrefix(authorization, "Bearer ") {
token, err := jwt.Parse(authorization[7:], func(t *jwt.Token) (interface{}, error) {
if _, ok := t.Method.(*jwt.SigningMethodHMAC); !ok {
return nil, fmt.Errorf("unexpected signing method: %v", t.Header["alg"])
}
return setting.LFS.JWTSecretBytes, nil
})
if err != nil {
return nil, nil, "unknown", err
}
return setting.LFS.JWTSecretBytes, nil
})
if err != nil {
return false
}
claims, claimsOk := token.Claims.(jwt.MapClaims)
if !token.Valid || !claimsOk {
return false
}
opStr, ok := claims["op"].(string)
if !ok {
return false
}
if requireWrite && opStr != "upload" {
return false
}
repoID, ok := claims["repo"].(float64)
if !ok {
return false
claims, claimsOk := token.Claims.(jwt.MapClaims)
if !token.Valid || !claimsOk {
return nil, nil, "unknown", fmt.Errorf("Token claim invalid")
}
opStr, ok := claims["op"].(string)
if !ok {
return nil, nil, "unknown", fmt.Errorf("Token operation invalid")
}
repoID, ok := claims["repo"].(float64)
if !ok {
return nil, nil, opStr, fmt.Errorf("Token repository id invalid")
}
r, err := models.GetRepositoryByID(int64(repoID))
if err != nil {
return nil, nil, opStr, err
}
userID, ok := claims["user"].(float64)
if !ok {
return nil, r, opStr, fmt.Errorf("Token user id invalid")
}
u, err := models.GetUserByID(int64(userID))
if err != nil {
return nil, r, opStr, err
}
return u, r, opStr, nil
}
if repository.ID != int64(repoID) {
return false
if strings.HasPrefix(authorization, "Basic ") {
c, err := base64.StdEncoding.DecodeString(strings.TrimPrefix(authorization, "Basic "))
if err != nil {
return nil, nil, "basic", err
}
cs := string(c)
i := strings.IndexByte(cs, ':')
if i < 0 {
return nil, nil, "basic", fmt.Errorf("Basic auth invalid")
}
user, password := cs[:i], cs[i+1:]
u, err := models.GetUserByName(user)
if err != nil {
return nil, nil, "basic", err
}
if !u.ValidatePassword(password) {
return nil, nil, "basic", fmt.Errorf("Basic auth failed")
}
return u, nil, "basic", nil
}
return true
return nil, nil, "unknown", fmt.Errorf("Token not found")
}
func requireAuth(ctx *context.Context) {

Write Preview
Loading…
Cancel
Save