Restricted users (#6274)

* Restricted users (#4334): initial implementation

* Add User.IsRestricted & UI to edit it

* Pass user object instead of user id to places where IsRestricted flag matters

* Restricted users: maintain access rows for all referenced repos (incl public)

* Take logged in user & IsRestricted flag into account in org/repo listings, searches and accesses

* Add basic repo access tests for restricted users

Signed-off-by: Manush Dodunekov <manush@stendahls.se>

* Mention restricted users in the faq

Signed-off-by: Manush Dodunekov <manush@stendahls.se>

* Revert unnecessary change `.isUserPartOfOrg` -> `.IsUserPartOfOrg`

Signed-off-by: Manush Dodunekov <manush@stendahls.se>

* Remove unnecessary `org.IsOrganization()` call

Signed-off-by: Manush Dodunekov <manush@stendahls.se>

* Revert to an `int64` keyed `accessMap`

* Add type `userAccess`
* Add convenience func updateUserAccess()
* Turn accessMap into a `map[int64]userAccess`

Signed-off-by: Manush Dodunekov <manush@stendahls.se>

* or even better: `map[int64]*userAccess`

* updateUserAccess(): use tighter syntax as suggested by lafriks

* even tighter

* Avoid extra loop

* Don't disclose limited orgs to unauthenticated users

* Don't assume block only applies to orgs

* Use an array of `VisibleType` for filtering

* fix yet another thinko

* Ok - no need for u

* Revert "Ok - no need for u"

This reverts commit 5c3e886.

Co-authored-by: Antoine GIRARD <sapk@users.noreply.github.com>
Co-authored-by: Lauris BH <lauris@nix.lv>

Author: 3 people

docs/content/doc/help/faq.en-us.md

@@ -31,6 +31,7 @@ Also see [Support Options]({{< relref "doc/help/seek-help.en-us.md" >}})
   * [Only allow certain email domains](#only-allow-certain-email-domains)
   * [Only allow/block certain OpenID providers](#only-allow-block-certain-openid-providers)
   * [Issue only users](#issue-only-users)
+  * [Restricted users](#restricted-users)
   * [Enable Fail2ban](#enable-fail2ban)
 * [Adding custom themes](#how-to-add-use-custom-themes)
 * [SSHD vs built-in SSH](#sshd-vs-built-in-ssh)
@@ -147,6 +148,14 @@ You can configure `WHITELISTED_URIS` or `BLACKLISTED_URIS` under `[openid]` in y
 ### Issue only users
 The current way to achieve this is to create/modify a user with a max repo creation limit of 0.
 
+### Restricted users
+Restricted users are limited to a subset of the content based on their organization/team memberships and collaborations, ignoring the public flag on organizations/repos etc.__
+
+Example use case: A company runs a Gitea instance that requires login. Most repos are public (accessible/browseable by all co-workers).
+
+At some point, a customer or third party needs access to a specific repo and only that repo. Making such a customer account restricted and granting any needed access using team membership(s) and/or collaboration(s) is a simple way to achieve that without the need to make everything private.
+
+
 ### Enable Fail2ban
 
 Use [Fail2Ban]({{ relref "doc/usage/fail2ban-setup.md" >}}) to monitor and stop automated login attempts or other malicious behavior based on log patterns

models/access.go

@@ -71,9 +71,17 @@ type Access struct {
 	Mode   AccessMode
 }
 
-func accessLevel(e Engine, userID int64, repo *Repository) (AccessMode, error) {
+func accessLevel(e Engine, user *User, repo *Repository) (AccessMode, error) {
 	mode := AccessModeNone
-	if !repo.IsPrivate {
+	var userID int64
+	restricted := false
+
+	if user != nil {
+		userID = user.ID
+		restricted = user.IsRestricted
+	}
+
+	if !restricted && !repo.IsPrivate {
 		mode = AccessModeRead
 	}
 
@@ -162,22 +170,37 @@ func maxAccessMode(modes ...AccessMode) AccessMode {
 	return max
 }
 
+type userAccess struct {
+	User *User
+	Mode AccessMode
+}
+
+// updateUserAccess updates an access map so that user has at least mode
+func updateUserAccess(accessMap map[int64]*userAccess, user *User, mode AccessMode) {
+	if ua, ok := accessMap[user.ID]; ok {
+		ua.Mode = maxAccessMode(ua.Mode, mode)
+	} else {
+		accessMap[user.ID] = &userAccess{User: user, Mode: mode}
+	}
+}
+
 // FIXME: do cross-comparison so reduce deletions and additions to the minimum?
-func (repo *Repository) refreshAccesses(e Engine, accessMap map[int64]AccessMode) (err error) {
+func (repo *Repository) refreshAccesses(e Engine, accessMap map[int64]*userAccess) (err error) {
 	minMode := AccessModeRead
 	if !repo.IsPrivate {
 		minMode = AccessModeWrite
 	}
 
 	newAccesses := make([]Access, 0, len(accessMap))
-	for userID, mode := range accessMap {
-		if mode < minMode {
+	for userID, ua := range accessMap {
+		if ua.Mode < minMode && !ua.User.IsRestricted {
 			continue
 		}
+
 		newAccesses = append(newAccesses, Access{
 			UserID: userID,
 			RepoID: repo.ID,
-			Mode:   mode,
+			Mode:   ua.Mode,
 		})
 	}
 
@@ -191,13 +214,13 @@ func (repo *Repository) refreshAccesses(e Engine, accessMap map[int64]AccessMode
 }
 
 // refreshCollaboratorAccesses retrieves repository collaborations with their access modes.
-func (repo *Repository) refreshCollaboratorAccesses(e Engine, accessMap map[int64]AccessMode) error {
-	collaborations, err := repo.getCollaborations(e)
+func (repo *Repository) refreshCollaboratorAccesses(e Engine, accessMap map[int64]*userAccess) error {
+	collaborators, err := repo.getCollaborators(e)
 	if err != nil {
 		return fmt.Errorf("getCollaborations: %v", err)
 	}
-	for _, c := range collaborations {
-		accessMap[c.UserID] = c.Mode
+	for _, c := range collaborators {
+		updateUserAccess(accessMap, c.User, c.Collaboration.Mode)
 	}
 	return nil
 }
@@ -206,7 +229,7 @@ func (repo *Repository) refreshCollaboratorAccesses(e Engine, accessMap map[int6
 // except the team whose ID is given. It is used to assign a team ID when
 // remove repository from that team.
 func (repo *Repository) recalculateTeamAccesses(e Engine, ignTeamID int64) (err error) {
-	accessMap := make(map[int64]AccessMode, 20)
+	accessMap := make(map[int64]*userAccess, 20)
 
 	if err = repo.getOwner(e); err != nil {
 		return err
@@ -239,7 +262,7 @@ func (repo *Repository) recalculateTeamAccesses(e Engine, ignTeamID int64) (err
 			return fmt.Errorf("getMembers '%d': %v", t.ID, err)
 		}
 		for _, m := range t.Members {
-			accessMap[m.ID] = maxAccessMode(accessMap[m.ID], t.Authorize)
+			updateUserAccess(accessMap, m, t.Authorize)
 		}
 	}
 
@@ -300,7 +323,7 @@ func (repo *Repository) recalculateAccesses(e Engine) error {
 		return repo.recalculateTeamAccesses(e, 0)
 	}
 
-	accessMap := make(map[int64]AccessMode, 20)
+	accessMap := make(map[int64]*userAccess, 20)
 	if err := repo.refreshCollaboratorAccesses(e, accessMap); err != nil {
 		return fmt.Errorf("refreshCollaboratorAccesses: %v", err)
 	}

models/access_test.go

@@ -15,13 +15,20 @@ func TestAccessLevel(t *testing.T) {
 
 	user2 := AssertExistsAndLoadBean(t, &User{ID: 2}).(*User)
 	user5 := AssertExistsAndLoadBean(t, &User{ID: 5}).(*User)
+	user29 := AssertExistsAndLoadBean(t, &User{ID: 29}).(*User)
 	// A public repository owned by User 2
 	repo1 := AssertExistsAndLoadBean(t, &Repository{ID: 1}).(*Repository)
 	assert.False(t, repo1.IsPrivate)
 	// A private repository owned by Org 3
 	repo3 := AssertExistsAndLoadBean(t, &Repository{ID: 3}).(*Repository)
 	assert.True(t, repo3.IsPrivate)
 
+	// Another public repository
+	repo4 := AssertExistsAndLoadBean(t, &Repository{ID: 4}).(*Repository)
+	assert.False(t, repo4.IsPrivate)
+	// org. owned private repo
+	repo24 := AssertExistsAndLoadBean(t, &Repository{ID: 24}).(*Repository)
+
 	level, err := AccessLevel(user2, repo1)
 	assert.NoError(t, err)
 	assert.Equal(t, AccessModeOwner, level)
@@ -37,6 +44,21 @@ func TestAccessLevel(t *testing.T) {
 	level, err = AccessLevel(user5, repo3)
 	assert.NoError(t, err)
 	assert.Equal(t, AccessModeNone, level)
+
+	// restricted user has no access to a public repo
+	level, err = AccessLevel(user29, repo1)
+	assert.NoError(t, err)
+	assert.Equal(t, AccessModeNone, level)
+
+	// ... unless he's a collaborator
+	level, err = AccessLevel(user29, repo4)
+	assert.NoError(t, err)
+	assert.Equal(t, AccessModeWrite, level)
+
+	// ... or a team member
+	level, err = AccessLevel(user29, repo24)
+	assert.NoError(t, err)
+	assert.Equal(t, AccessModeRead, level)
 }
 
 func TestHasAccess(t *testing.T) {
@@ -72,6 +94,11 @@ func TestUser_GetRepositoryAccesses(t *testing.T) {
 	accesses, err := user1.GetRepositoryAccesses()
 	assert.NoError(t, err)
 	assert.Len(t, accesses, 0)
+
+	user29 := AssertExistsAndLoadBean(t, &User{ID: 29}).(*User)
+	accesses, err = user29.GetRepositoryAccesses()
+	assert.NoError(t, err)
+	assert.Len(t, accesses, 2)
 }
 
 func TestUser_GetAccessibleRepositories(t *testing.T) {
@@ -86,6 +113,11 @@ func TestUser_GetAccessibleRepositories(t *testing.T) {
 	repos, err = user2.GetAccessibleRepositories(0)
 	assert.NoError(t, err)
 	assert.Len(t, repos, 1)
+
+	user29 := AssertExistsAndLoadBean(t, &User{ID: 29}).(*User)
+	repos, err = user29.GetAccessibleRepositories(0)
+	assert.NoError(t, err)
+	assert.Len(t, repos, 2)
 }
 
 func TestRepository_RecalculateAccesses(t *testing.T) {
@@ -119,3 +151,21 @@ func TestRepository_RecalculateAccesses2(t *testing.T) {
 	assert.NoError(t, err)
 	assert.False(t, has)
 }
+
+func TestRepository_RecalculateAccesses3(t *testing.T) {
+	assert.NoError(t, PrepareTestDatabase())
+	team5 := AssertExistsAndLoadBean(t, &Team{ID: 5}).(*Team)
+	user29 := AssertExistsAndLoadBean(t, &User{ID: 29}).(*User)
+
+	has, err := x.Get(&Access{UserID: 29, RepoID: 23})
+	assert.NoError(t, err)
+	assert.False(t, has)
+
+	// adding user29 to team5 should add an explicit access row for repo 23
+	// even though repo 23 is public
+	assert.NoError(t, AddTeamMember(team5, user29.ID))
+
+	has, err = x.Get(&Access{UserID: 29, RepoID: 23})
+	assert.NoError(t, err)
+	assert.True(t, has)
+}

models/action.go

@@ -284,20 +284,26 @@ func (a *Action) GetIssueContent() string {
 
 // GetFeedsOptions options for retrieving feeds
 type GetFeedsOptions struct {
-	RequestedUser    *User
-	RequestingUserID int64
-	IncludePrivate   bool // include private actions
-	OnlyPerformedBy  bool // only actions performed by requested user
-	IncludeDeleted   bool // include deleted actions
+	RequestedUser   *User // the user we want activity for
+	Actor           *User // the user viewing the activity
+	IncludePrivate  bool  // include private actions
+	OnlyPerformedBy bool  // only actions performed by requested user
+	IncludeDeleted  bool  // include deleted actions
 }
 
 // GetFeeds returns actions according to the provided options
 func GetFeeds(opts GetFeedsOptions) ([]*Action, error) {
 	cond := builder.NewCond()
 
 	var repoIDs []int64
+	var actorID int64
+
+	if opts.Actor != nil {
+		actorID = opts.Actor.ID
+	}
+
 	if opts.RequestedUser.IsOrganization() {
-		env, err := opts.RequestedUser.AccessibleReposEnv(opts.RequestingUserID)
+		env, err := opts.RequestedUser.AccessibleReposEnv(actorID)
 		if err != nil {
 			return nil, fmt.Errorf("AccessibleReposEnv: %v", err)
 		}
@@ -306,6 +312,8 @@ func GetFeeds(opts GetFeedsOptions) ([]*Action, error) {
 		}
 
 		cond = cond.And(builder.In("repo_id", repoIDs))
+	} else if opts.Actor != nil {
+		cond = cond.And(builder.In("repo_id", opts.Actor.AccessibleRepoIDsQuery()))
 	}
 
 	cond = cond.And(builder.Eq{"user_id": opts.RequestedUser.ID})

models/action_test.go

@@ -33,11 +33,11 @@ func TestGetFeeds(t *testing.T) {
 	user := AssertExistsAndLoadBean(t, &User{ID: 2}).(*User)
 
 	actions, err := GetFeeds(GetFeedsOptions{
-		RequestedUser:    user,
-		RequestingUserID: user.ID,
-		IncludePrivate:   true,
-		OnlyPerformedBy:  false,
-		IncludeDeleted:   true,
+		RequestedUser:   user,
+		Actor:           user,
+		IncludePrivate:  true,
+		OnlyPerformedBy: false,
+		IncludeDeleted:  true,
 	})
 	assert.NoError(t, err)
 	if assert.Len(t, actions, 1) {
@@ -46,10 +46,10 @@ func TestGetFeeds(t *testing.T) {
 	}
 
 	actions, err = GetFeeds(GetFeedsOptions{
-		RequestedUser:    user,
-		RequestingUserID: user.ID,
-		IncludePrivate:   false,
-		OnlyPerformedBy:  false,
+		RequestedUser:   user,
+		Actor:           user,
+		IncludePrivate:  false,
+		OnlyPerformedBy: false,
 	})
 	assert.NoError(t, err)
 	assert.Len(t, actions, 0)
@@ -59,14 +59,14 @@ func TestGetFeeds2(t *testing.T) {
 	// test with an organization user
 	assert.NoError(t, PrepareTestDatabase())
 	org := AssertExistsAndLoadBean(t, &User{ID: 3}).(*User)
-	const userID = 2 // user2 is an owner of the organization
+	user := AssertExistsAndLoadBean(t, &User{ID: 2}).(*User)
 
 	actions, err := GetFeeds(GetFeedsOptions{
-		RequestedUser:    org,
-		RequestingUserID: userID,
-		IncludePrivate:   true,
-		OnlyPerformedBy:  false,
-		IncludeDeleted:   true,
+		RequestedUser:   org,
+		Actor:           user,
+		IncludePrivate:  true,
+		OnlyPerformedBy: false,
+		IncludeDeleted:  true,
 	})
 	assert.NoError(t, err)
 	assert.Len(t, actions, 1)
@@ -76,11 +76,11 @@ func TestGetFeeds2(t *testing.T) {
 	}
 
 	actions, err = GetFeeds(GetFeedsOptions{
-		RequestedUser:    org,
-		RequestingUserID: userID,
-		IncludePrivate:   false,
-		OnlyPerformedBy:  false,
-		IncludeDeleted:   true,
+		RequestedUser:   org,
+		Actor:           user,
+		IncludePrivate:  false,
+		OnlyPerformedBy: false,
+		IncludeDeleted:  true,
 	})
 	assert.NoError(t, err)
 	assert.Len(t, actions, 0)

models/fixtures/access.yml

@@ -74,4 +74,16 @@
   id: 13
   user_id: 20
   repo_id: 28
-  mode: 4 # owner
+  mode: 4 # owner
+
+-
+  id: 14
+  user_id: 29
+  repo_id: 4
+  mode: 2 # write (collaborator)
+
+-
+  id: 15
+  user_id: 29
+  repo_id: 24
+  mode: 1 # read

models/fixtures/collaboration.yml

@@ -14,4 +14,10 @@
   id: 3
   repo_id: 40
   user_id: 4
-  mode: 2 # write
+  mode: 2 # write
+
+-
+  id: 4
+  repo_id: 4
+  user_id: 29
+  mode: 2 # write

models/fixtures/org_user.yml

@@ -58,3 +58,8 @@
   org_id: 6
   is_public: true
 
+-
+  id: 11
+  uid: 29
+  org_id: 17
+  is_public: true

models/fixtures/team.yml

@@ -77,7 +77,7 @@
   name: review_team
   authorize: 1 # read
   num_repos: 1
-  num_members: 1
+  num_members: 2
 
 -
   id: 10

models/fixtures/team_user.yml

@@ -81,3 +81,9 @@
   org_id: 6
   team_id: 13
   uid: 28
+
+-
+  id: 15
+  org_id: 17
+  team_id: 9
+  uid: 29