mirror of
https://codeberg.org/forgejo/forgejo.git
synced 2024-08-14 23:24:53 +02:00
Fix SSH auth lfs locks (#3152)
* Fix SSH auth LFS locks * Activate SSH/lock test * Remove debug * Follow @lunny recommendation for AfterLoad method
This commit is contained in:
parent
97fe773491
commit
9e842c8a72
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@ -259,12 +259,16 @@ func runServ(c *cli.Context) error {
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url := fmt.Sprintf("%s%s/%s.git/info/lfs", setting.AppURL, username, repo.Name)
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now := time.Now()
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token := jwt.NewWithClaims(jwt.SigningMethodHS256, jwt.MapClaims{
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claims := jwt.MapClaims{
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"repo": repo.ID,
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"op": lfsVerb,
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"exp": now.Add(5 * time.Minute).Unix(),
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"nbf": now.Unix(),
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})
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}
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if user != nil {
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claims["user"] = user.ID
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}
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token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
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// Sign and get the complete encoded token as a string using the secret
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tokenString, err := token.SignedString(setting.LFS.JWTSecretBytes)
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@ -41,10 +41,10 @@ func TestAPILFSLocksNotLogin(t *testing.T) {
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req := NewRequestf(t, "GET", "/%s/%s.git/info/lfs/locks", user.Name, repo.Name)
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req.Header.Set("Accept", "application/vnd.git-lfs+json")
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resp := MakeRequest(t, req, http.StatusForbidden)
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resp := MakeRequest(t, req, http.StatusUnauthorized)
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var lfsLockError api.LFSLockError
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DecodeJSON(t, resp, &lfsLockError)
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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)
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assert.Equal(t, "Unauthorized", lfsLockError.Message)
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}
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func TestAPILFSLocksLogged(t *testing.T) {
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@ -68,8 +68,8 @@ func TestAPILFSLocksLogged(t *testing.T) {
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{user: user2, repo: repo1, path: "path/test", httpResult: http.StatusConflict},
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{user: user2, repo: repo1, path: "Foo/BaR.zip", httpResult: http.StatusConflict},
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{user: user2, repo: repo1, path: "Foo/Test/../subFOlder/../Relative/../BaR.zip", httpResult: http.StatusConflict},
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{user: user4, repo: repo1, path: "FoO/BaR.zip", httpResult: http.StatusForbidden},
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{user: user4, repo: repo1, path: "path/test-user4", httpResult: http.StatusForbidden},
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{user: user4, repo: repo1, path: "FoO/BaR.zip", httpResult: http.StatusUnauthorized},
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{user: user4, repo: repo1, path: "path/test-user4", httpResult: http.StatusUnauthorized},
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{user: user2, repo: repo1, path: "patH/Test-user4", httpResult: http.StatusCreated, addTime: []int{0}},
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{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}},
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@ -214,11 +214,9 @@ func TestGit(t *testing.T) {
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commitAndPush(t, bigSize, dstPath)
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})
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})
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/* Failed without #3152. TODO activate with fix.
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t.Run("Locks", func(t *testing.T) {
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lockTest(t, u.String(), dstPath)
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lockTest(t, u.String(), dstPath)
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})
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*/
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})
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})
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})
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@ -530,21 +530,24 @@ func (err ErrLFSLockNotExist) Error() string {
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return fmt.Sprintf("lfs lock does not exist [id: %d, rid: %d, path: %s]", err.ID, err.RepoID, err.Path)
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}
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// ErrLFSLockUnauthorizedAction represents a "LFSLockUnauthorizedAction" kind of error.
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type ErrLFSLockUnauthorizedAction struct {
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// ErrLFSUnauthorizedAction represents a "LFSUnauthorizedAction" kind of error.
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type ErrLFSUnauthorizedAction struct {
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RepoID int64
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UserName string
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Action string
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Mode AccessMode
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}
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// IsErrLFSLockUnauthorizedAction checks if an error is a ErrLFSLockUnauthorizedAction.
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func IsErrLFSLockUnauthorizedAction(err error) bool {
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_, ok := err.(ErrLFSLockUnauthorizedAction)
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// IsErrLFSUnauthorizedAction checks if an error is a ErrLFSUnauthorizedAction.
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func IsErrLFSUnauthorizedAction(err error) bool {
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_, ok := err.(ErrLFSUnauthorizedAction)
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return ok
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}
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func (err ErrLFSLockUnauthorizedAction) Error() string {
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return fmt.Sprintf("User %s doesn't have rigth to %s for lfs lock [rid: %d]", err.UserName, err.Action, err.RepoID)
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func (err ErrLFSUnauthorizedAction) Error() string {
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if err.Mode == AccessModeWrite {
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return fmt.Sprintf("User %s doesn't have write access for lfs lock [rid: %d]", err.UserName, err.RepoID)
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}
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return fmt.Sprintf("User %s doesn't have read access for lfs lock [rid: %d]", err.UserName, err.RepoID)
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}
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// ErrLFSLockAlreadyExist represents a "LFSLockAlreadyExist" kind of error.
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@ -11,28 +11,40 @@ import (
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"strings"
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"time"
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"code.gitea.io/gitea/modules/log"
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api "code.gitea.io/sdk/gitea"
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"github.com/go-xorm/xorm"
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)
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// LFSLock represents a git lfs lock of repository.
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type LFSLock struct {
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ID int64 `xorm:"pk autoincr"`
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RepoID int64 `xorm:"INDEX NOT NULL"`
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Owner *User `xorm:"-"`
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OwnerID int64 `xorm:"INDEX NOT NULL"`
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Path string `xorm:"TEXT"`
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Created time.Time `xorm:"created"`
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ID int64 `xorm:"pk autoincr"`
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Repo *Repository `xorm:"-"`
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RepoID int64 `xorm:"INDEX NOT NULL"`
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Owner *User `xorm:"-"`
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OwnerID int64 `xorm:"INDEX NOT NULL"`
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Path string `xorm:"TEXT"`
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Created time.Time `xorm:"created"`
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}
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// BeforeInsert is invoked from XORM before inserting an object of this type.
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func (l *LFSLock) BeforeInsert() {
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l.OwnerID = l.Owner.ID
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l.RepoID = l.Repo.ID
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l.Path = cleanPath(l.Path)
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}
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// AfterLoad is invoked from XORM after setting the values of all fields of this object.
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func (l *LFSLock) AfterLoad() {
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l.Owner, _ = GetUserByID(l.OwnerID)
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func (l *LFSLock) AfterLoad(session *xorm.Session) {
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var err error
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l.Owner, err = getUserByID(session, l.OwnerID)
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if err != nil {
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log.Error(2, "LFS lock AfterLoad failed OwnerId[%d] not found: %v", l.OwnerID, err)
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}
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l.Repo, err = getRepositoryByID(session, l.RepoID)
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if err != nil {
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log.Error(2, "LFS lock AfterLoad failed RepoId[%d] not found: %v", l.RepoID, err)
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}
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}
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func cleanPath(p string) string {
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@ -53,12 +65,12 @@ func (l *LFSLock) APIFormat() *api.LFSLock {
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// CreateLFSLock creates a new lock.
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func CreateLFSLock(lock *LFSLock) (*LFSLock, error) {
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err := CheckLFSAccessForRepo(lock.Owner, lock.RepoID, "create")
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err := CheckLFSAccessForRepo(lock.Owner, lock.Repo, AccessModeWrite)
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if err != nil {
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return nil, err
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}
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l, err := GetLFSLock(lock.RepoID, lock.Path)
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l, err := GetLFSLock(lock.Repo, lock.Path)
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if err == nil {
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return l, ErrLFSLockAlreadyExist{lock.RepoID, lock.Path}
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}
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@ -71,15 +83,15 @@ func CreateLFSLock(lock *LFSLock) (*LFSLock, error) {
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}
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// GetLFSLock returns release by given path.
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func GetLFSLock(repoID int64, path string) (*LFSLock, error) {
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func GetLFSLock(repo *Repository, path string) (*LFSLock, error) {
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path = cleanPath(path)
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rel := &LFSLock{RepoID: repoID}
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rel := &LFSLock{RepoID: repo.ID}
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has, err := x.Where("lower(path) = ?", strings.ToLower(path)).Get(rel)
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if err != nil {
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return nil, err
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}
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if !has {
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return nil, ErrLFSLockNotExist{0, repoID, path}
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return nil, ErrLFSLockNotExist{0, repo.ID, path}
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}
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return rel, nil
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}
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@ -109,7 +121,7 @@ func DeleteLFSLockByID(id int64, u *User, force bool) (*LFSLock, error) {
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return nil, err
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}
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err = CheckLFSAccessForRepo(u, lock.RepoID, "delete")
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err = CheckLFSAccessForRepo(u, lock.Repo, AccessModeWrite)
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if err != nil {
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return nil, err
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}
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@ -123,24 +135,15 @@ func DeleteLFSLockByID(id int64, u *User, force bool) (*LFSLock, error) {
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}
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//CheckLFSAccessForRepo check needed access mode base on action
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func CheckLFSAccessForRepo(u *User, repoID int64, action string) error {
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func CheckLFSAccessForRepo(u *User, repo *Repository, mode AccessMode) error {
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if u == nil {
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return ErrLFSLockUnauthorizedAction{repoID, "undefined", action}
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}
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mode := AccessModeRead
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if action == "create" || action == "delete" || action == "verify" {
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mode = AccessModeWrite
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}
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repo, err := GetRepositoryByID(repoID)
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if err != nil {
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return err
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return ErrLFSUnauthorizedAction{repo.ID, "undefined", mode}
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}
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has, err := HasAccess(u.ID, repo, mode)
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if err != nil {
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return err
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} else if !has {
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return ErrLFSLockUnauthorizedAction{repo.ID, u.DisplayName(), action}
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return ErrLFSUnauthorizedAction{repo.ID, u.DisplayName(), mode}
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}
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return nil
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}
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@ -13,24 +13,35 @@ import (
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"code.gitea.io/gitea/modules/context"
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"code.gitea.io/gitea/modules/setting"
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api "code.gitea.io/sdk/gitea"
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"gopkg.in/macaron.v1"
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)
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func checkRequest(req macaron.Request, post bool) int {
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//checkIsValidRequest check if it a valid request in case of bad request it write the response to ctx.
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func checkIsValidRequest(ctx *context.Context, post bool) bool {
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if !setting.LFS.StartServer {
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return 404
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writeStatus(ctx, 404)
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return false
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}
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if !MetaMatcher(req) {
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return 400
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if !MetaMatcher(ctx.Req) {
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writeStatus(ctx, 400)
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return false
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}
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if !ctx.IsSigned {
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user, _, _, err := parseToken(ctx.Req.Header.Get("Authorization"))
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if err != nil {
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ctx.Resp.Header().Set("WWW-Authenticate", "Basic realm=gitea-lfs")
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writeStatus(ctx, 401)
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return false
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}
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ctx.User = user
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}
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if post {
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mediaParts := strings.Split(req.Header.Get("Content-Type"), ";")
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mediaParts := strings.Split(ctx.Req.Header.Get("Content-Type"), ";")
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if mediaParts[0] != metaMediaType {
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return 400
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writeStatus(ctx, 400)
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return false
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}
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}
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return 200
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return true
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}
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func handleLockListOut(ctx *context.Context, lock *models.LFSLock, err error) {
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@ -59,17 +70,16 @@ func handleLockListOut(ctx *context.Context, lock *models.LFSLock, err error) {
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// GetListLockHandler list locks
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func GetListLockHandler(ctx *context.Context) {
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status := checkRequest(ctx.Req, false)
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if status != 200 {
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writeStatus(ctx, status)
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if !checkIsValidRequest(ctx, false) {
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return
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}
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ctx.Resp.Header().Set("Content-Type", metaMediaType)
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err := models.CheckLFSAccessForRepo(ctx.User, ctx.Repo.Repository.ID, "list")
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err := models.CheckLFSAccessForRepo(ctx.User, ctx.Repo.Repository, models.AccessModeRead)
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if err != nil {
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if models.IsErrLFSLockUnauthorizedAction(err) {
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ctx.JSON(403, api.LFSLockError{
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if models.IsErrLFSUnauthorizedAction(err) {
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ctx.Resp.Header().Set("WWW-Authenticate", "Basic realm=gitea-lfs")
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ctx.JSON(401, api.LFSLockError{
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Message: "You must have pull access to list locks : " + err.Error(),
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})
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return
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@ -96,7 +106,7 @@ func GetListLockHandler(ctx *context.Context) {
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path := ctx.Query("path")
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if path != "" { //Case where we request a specific id
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lock, err := models.GetLFSLock(ctx.Repo.Repository.ID, path)
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lock, err := models.GetLFSLock(ctx.Repo.Repository, path)
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handleLockListOut(ctx, lock, err)
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return
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}
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@ -120,9 +130,7 @@ func GetListLockHandler(ctx *context.Context) {
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// PostLockHandler create lock
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func PostLockHandler(ctx *context.Context) {
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status := checkRequest(ctx.Req, true)
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if status != 200 {
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writeStatus(ctx, status)
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if !checkIsValidRequest(ctx, false) {
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return
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}
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ctx.Resp.Header().Set("Content-Type", metaMediaType)
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@ -136,9 +144,9 @@ func PostLockHandler(ctx *context.Context) {
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}
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lock, err := models.CreateLFSLock(&models.LFSLock{
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RepoID: ctx.Repo.Repository.ID,
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Path: req.Path,
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Owner: ctx.User,
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Repo: ctx.Repo.Repository,
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Path: req.Path,
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Owner: ctx.User,
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})
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if err != nil {
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if models.IsErrLFSLockAlreadyExist(err) {
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@ -148,8 +156,9 @@ func PostLockHandler(ctx *context.Context) {
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})
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return
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}
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if models.IsErrLFSLockUnauthorizedAction(err) {
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ctx.JSON(403, api.LFSLockError{
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if models.IsErrLFSUnauthorizedAction(err) {
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ctx.Resp.Header().Set("WWW-Authenticate", "Basic realm=gitea-lfs")
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ctx.JSON(401, api.LFSLockError{
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Message: "You must have push access to create locks : " + err.Error(),
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})
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return
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@ -164,18 +173,16 @@ func PostLockHandler(ctx *context.Context) {
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// VerifyLockHandler list locks for verification
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func VerifyLockHandler(ctx *context.Context) {
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status := checkRequest(ctx.Req, true)
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if status != 200 {
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writeStatus(ctx, status)
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if !checkIsValidRequest(ctx, false) {
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return
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}
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ctx.Resp.Header().Set("Content-Type", metaMediaType)
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err := models.CheckLFSAccessForRepo(ctx.User, ctx.Repo.Repository.ID, "verify")
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err := models.CheckLFSAccessForRepo(ctx.User, ctx.Repo.Repository, models.AccessModeWrite)
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if err != nil {
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if models.IsErrLFSLockUnauthorizedAction(err) {
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ctx.JSON(403, api.LFSLockError{
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if models.IsErrLFSUnauthorizedAction(err) {
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ctx.Resp.Header().Set("WWW-Authenticate", "Basic realm=gitea-lfs")
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ctx.JSON(401, api.LFSLockError{
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Message: "You must have push access to verify locks : " + err.Error(),
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})
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return
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@ -211,9 +218,7 @@ func VerifyLockHandler(ctx *context.Context) {
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// UnLockHandler delete locks
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func UnLockHandler(ctx *context.Context) {
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status := checkRequest(ctx.Req, true)
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if status != 200 {
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writeStatus(ctx, status)
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if !checkIsValidRequest(ctx, false) {
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return
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}
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ctx.Resp.Header().Set("Content-Type", metaMediaType)
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@ -228,8 +233,9 @@ func UnLockHandler(ctx *context.Context) {
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lock, err := models.DeleteLFSLockByID(ctx.ParamsInt64("lid"), ctx.User, req.Force)
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if err != nil {
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if models.IsErrLFSLockUnauthorizedAction(err) {
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ctx.JSON(403, api.LFSLockError{
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if models.IsErrLFSUnauthorizedAction(err) {
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ctx.Resp.Header().Set("WWW-Authenticate", "Basic realm=gitea-lfs")
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ctx.JSON(401, api.LFSLockError{
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Message: "You must have push access to delete locks : " + err.Error(),
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})
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return
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@ -473,7 +473,6 @@ func logRequest(r macaron.Request, status int) {
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// authenticate uses the authorization string to determine whether
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// or not to proceed. This server assumes an HTTP Basic auth format.
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func authenticate(ctx *context.Context, repository *models.Repository, authorization string, requireWrite bool) bool {
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accessMode := models.AccessModeRead
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if requireWrite {
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accessMode = models.AccessModeWrite
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@ -482,86 +481,92 @@ func authenticate(ctx *context.Context, repository *models.Repository, authoriza
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if !repository.IsPrivate && !requireWrite {
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return true
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}
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if ctx.IsSigned {
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accessCheck, _ := models.HasAccess(ctx.User.ID, repository, accessMode)
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return accessCheck
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}
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if authorization == "" {
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user, repo, opStr, err := parseToken(authorization)
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if err != nil {
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return false
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}
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if authenticateToken(repository, authorization, requireWrite) {
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ctx.User = user
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if opStr == "basic" {
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accessCheck, _ := models.HasAccess(ctx.User.ID, repository, accessMode)
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return accessCheck
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}
|
||||
if repository.ID == repo.ID {
|
||||
if requireWrite && opStr != "upload" {
|
||||
return false
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
if !strings.HasPrefix(authorization, "Basic ") {
|
||||
return false
|
||||
}
|
||||
|
||||
c, err := base64.StdEncoding.DecodeString(strings.TrimPrefix(authorization, "Basic "))
|
||||
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
|
||||
}
|
||||
|
||||
if !userModel.ValidatePassword(password) {
|
||||
return false
|
||||
}
|
||||
|
||||
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
|
||||
func parseToken(authorization string) (*models.User, *models.Repository, string, error) {
|
||||
if authorization == "" {
|
||||
return nil, nil, "unknown", fmt.Errorf("No token")
|
||||
}
|
||||
|
||||
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"])
|
||||
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
|
||||
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
|
||||
}
|
||||
|
||||
opStr, ok := claims["op"].(string)
|
||||
if !ok {
|
||||
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
|
||||
}
|
||||
|
||||
if requireWrite && opStr != "upload" {
|
||||
return false
|
||||
}
|
||||
|
||||
repoID, ok := claims["repo"].(float64)
|
||||
if !ok {
|
||||
return false
|
||||
}
|
||||
|
||||
if repository.ID != int64(repoID) {
|
||||
return false
|
||||
}
|
||||
|
||||
return true
|
||||
return nil, nil, "unknown", fmt.Errorf("Token not found")
|
||||
}
|
||||
|
||||
func requireAuth(ctx *context.Context) {
|
||||
|
|
Loading…
Reference in a new issue