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- // Copyright 2018 The Gitea Authors. All rights reserved.
- // Use of this source code is governed by a MIT-style
- // license that can be found in the LICENSE file.
-
- package access
-
- import (
- "context"
- "fmt"
-
- "code.gitea.io/gitea/models/db"
- "code.gitea.io/gitea/models/organization"
- perm_model "code.gitea.io/gitea/models/perm"
- repo_model "code.gitea.io/gitea/models/repo"
- "code.gitea.io/gitea/models/unit"
- user_model "code.gitea.io/gitea/models/user"
- "code.gitea.io/gitea/modules/log"
- )
-
- // Permission contains all the permissions related variables to a repository for a user
- type Permission struct {
- AccessMode perm_model.AccessMode
- Units []*repo_model.RepoUnit
- UnitsMode map[unit.Type]perm_model.AccessMode
- }
-
- // IsOwner returns true if current user is the owner of repository.
- func (p *Permission) IsOwner() bool {
- return p.AccessMode >= perm_model.AccessModeOwner
- }
-
- // IsAdmin returns true if current user has admin or higher access of repository.
- func (p *Permission) IsAdmin() bool {
- return p.AccessMode >= perm_model.AccessModeAdmin
- }
-
- // HasAccess returns true if the current user has at least read access to any unit of this repository
- func (p *Permission) HasAccess() bool {
- if p.UnitsMode == nil {
- return p.AccessMode >= perm_model.AccessModeRead
- }
- return len(p.UnitsMode) > 0
- }
-
- // UnitAccessMode returns current user accessmode to the specify unit of the repository
- func (p *Permission) UnitAccessMode(unitType unit.Type) perm_model.AccessMode {
- if p.UnitsMode == nil {
- for _, u := range p.Units {
- if u.Type == unitType {
- return p.AccessMode
- }
- }
- return perm_model.AccessModeNone
- }
- return p.UnitsMode[unitType]
- }
-
- // CanAccess returns true if user has mode access to the unit of the repository
- func (p *Permission) CanAccess(mode perm_model.AccessMode, unitType unit.Type) bool {
- return p.UnitAccessMode(unitType) >= mode
- }
-
- // CanAccessAny returns true if user has mode access to any of the units of the repository
- func (p *Permission) CanAccessAny(mode perm_model.AccessMode, unitTypes ...unit.Type) bool {
- for _, u := range unitTypes {
- if p.CanAccess(mode, u) {
- return true
- }
- }
- return false
- }
-
- // CanRead returns true if user could read to this unit
- func (p *Permission) CanRead(unitType unit.Type) bool {
- return p.CanAccess(perm_model.AccessModeRead, unitType)
- }
-
- // CanReadAny returns true if user has read access to any of the units of the repository
- func (p *Permission) CanReadAny(unitTypes ...unit.Type) bool {
- return p.CanAccessAny(perm_model.AccessModeRead, unitTypes...)
- }
-
- // CanReadIssuesOrPulls returns true if isPull is true and user could read pull requests and
- // returns true if isPull is false and user could read to issues
- func (p *Permission) CanReadIssuesOrPulls(isPull bool) bool {
- if isPull {
- return p.CanRead(unit.TypePullRequests)
- }
- return p.CanRead(unit.TypeIssues)
- }
-
- // CanWrite returns true if user could write to this unit
- func (p *Permission) CanWrite(unitType unit.Type) bool {
- return p.CanAccess(perm_model.AccessModeWrite, unitType)
- }
-
- // CanWriteIssuesOrPulls returns true if isPull is true and user could write to pull requests and
- // returns true if isPull is false and user could write to issues
- func (p *Permission) CanWriteIssuesOrPulls(isPull bool) bool {
- if isPull {
- return p.CanWrite(unit.TypePullRequests)
- }
- return p.CanWrite(unit.TypeIssues)
- }
-
- // ColorFormat writes a colored string for these Permissions
- func (p *Permission) ColorFormat(s fmt.State) {
- noColor := log.ColorBytes(log.Reset)
-
- format := "perm_model.AccessMode: %-v, %d Units, %d UnitsMode(s): [ "
- args := []interface{}{
- p.AccessMode,
- log.NewColoredValueBytes(len(p.Units), &noColor),
- log.NewColoredValueBytes(len(p.UnitsMode), &noColor),
- }
- if s.Flag('+') {
- for i, unit := range p.Units {
- config := ""
- if unit.Config != nil {
- configBytes, err := unit.Config.ToDB()
- config = string(configBytes)
- if err != nil {
- config = err.Error()
- }
- }
- format += "\nUnits[%d]: ID: %d RepoID: %d Type: %-v Config: %s"
- args = append(args,
- log.NewColoredValueBytes(i, &noColor),
- log.NewColoredIDValue(unit.ID),
- log.NewColoredIDValue(unit.RepoID),
- unit.Type,
- config)
- }
- for key, value := range p.UnitsMode {
- format += "\nUnitMode[%-v]: %-v"
- args = append(args,
- key,
- value)
- }
- } else {
- format += "..."
- }
- format += " ]"
- log.ColorFprintf(s, format, args...)
- }
-
- // GetUserRepoPermission returns the user permissions to the repository
- func GetUserRepoPermission(ctx context.Context, repo *repo_model.Repository, user *user_model.User) (perm Permission, err error) {
- if log.IsTrace() {
- defer func() {
- if user == nil {
- log.Trace("Permission Loaded for anonymous user in %-v:\nPermissions: %-+v",
- repo,
- perm)
- return
- }
- log.Trace("Permission Loaded for %-v in %-v:\nPermissions: %-+v",
- user,
- repo,
- perm)
- }()
- }
-
- // anonymous user visit private repo.
- // TODO: anonymous user visit public unit of private repo???
- if user == nil && repo.IsPrivate {
- perm.AccessMode = perm_model.AccessModeNone
- return
- }
-
- var is bool
- if user != nil {
- is, err = repo_model.IsCollaborator(ctx, repo.ID, user.ID)
- if err != nil {
- return perm, err
- }
- }
-
- if err = repo.GetOwner(ctx); err != nil {
- return
- }
-
- // Prevent strangers from checking out public repo of private organization/users
- // Allow user if they are collaborator of a repo within a private user or a private organization but not a member of the organization itself
- if !organization.HasOrgOrUserVisible(ctx, repo.Owner, user) && !is {
- perm.AccessMode = perm_model.AccessModeNone
- return
- }
-
- if err = repo.LoadUnits(ctx); err != nil {
- return
- }
-
- perm.Units = repo.Units
-
- // anonymous visit public repo
- if user == nil {
- perm.AccessMode = perm_model.AccessModeRead
- return
- }
-
- // Admin or the owner has super access to the repository
- if user.IsAdmin || user.ID == repo.OwnerID {
- perm.AccessMode = perm_model.AccessModeOwner
- return
- }
-
- // plain user
- perm.AccessMode, err = accessLevel(ctx, user, repo)
- if err != nil {
- return
- }
-
- if err = repo.GetOwner(ctx); err != nil {
- return
- }
- if !repo.Owner.IsOrganization() {
- return
- }
-
- perm.UnitsMode = make(map[unit.Type]perm_model.AccessMode)
-
- // Collaborators on organization
- if is {
- for _, u := range repo.Units {
- perm.UnitsMode[u.Type] = perm.AccessMode
- }
- }
-
- // get units mode from teams
- teams, err := organization.GetUserRepoTeams(ctx, repo.OwnerID, user.ID, repo.ID)
- if err != nil {
- return
- }
-
- // if user in an owner team
- for _, team := range teams {
- if team.AccessMode >= perm_model.AccessModeAdmin {
- perm.AccessMode = perm_model.AccessModeOwner
- perm.UnitsMode = nil
- return
- }
- }
-
- for _, u := range repo.Units {
- var found bool
- for _, team := range teams {
- teamMode := team.UnitAccessModeCtx(ctx, u.Type)
- if teamMode > perm_model.AccessModeNone {
- m := perm.UnitsMode[u.Type]
- if m < teamMode {
- perm.UnitsMode[u.Type] = teamMode
- }
- found = true
- }
- }
-
- // for a public repo on an organization, a non-restricted user has read permission on non-team defined units.
- if !found && !repo.IsPrivate && !user.IsRestricted {
- if _, ok := perm.UnitsMode[u.Type]; !ok {
- perm.UnitsMode[u.Type] = perm_model.AccessModeRead
- }
- }
- }
-
- // remove no permission units
- perm.Units = make([]*repo_model.RepoUnit, 0, len(repo.Units))
- for t := range perm.UnitsMode {
- for _, u := range repo.Units {
- if u.Type == t {
- perm.Units = append(perm.Units, u)
- }
- }
- }
-
- return
- }
-
- // IsUserRealRepoAdmin check if this user is real repo admin
- func IsUserRealRepoAdmin(repo *repo_model.Repository, user *user_model.User) (bool, error) {
- if repo.OwnerID == user.ID {
- return true, nil
- }
-
- if err := repo.GetOwner(db.DefaultContext); err != nil {
- return false, err
- }
-
- accessMode, err := accessLevel(db.DefaultContext, user, repo)
- if err != nil {
- return false, err
- }
-
- return accessMode >= perm_model.AccessModeAdmin, nil
- }
-
- // IsUserRepoAdmin return true if user has admin right of a repo
- func IsUserRepoAdmin(ctx context.Context, repo *repo_model.Repository, user *user_model.User) (bool, error) {
- if user == nil || repo == nil {
- return false, nil
- }
- if user.IsAdmin {
- return true, nil
- }
-
- mode, err := accessLevel(ctx, user, repo)
- if err != nil {
- return false, err
- }
- if mode >= perm_model.AccessModeAdmin {
- return true, nil
- }
-
- teams, err := organization.GetUserRepoTeams(ctx, repo.OwnerID, user.ID, repo.ID)
- if err != nil {
- return false, err
- }
-
- for _, team := range teams {
- if team.AccessMode >= perm_model.AccessModeAdmin {
- return true, nil
- }
- }
- return false, nil
- }
-
- // AccessLevel returns the Access a user has to a repository. Will return NoneAccess if the
- // user does not have access.
- func AccessLevel(user *user_model.User, repo *repo_model.Repository) (perm_model.AccessMode, error) { //nolint
- return AccessLevelUnit(user, repo, unit.TypeCode)
- }
-
- // AccessLevelUnit returns the Access a user has to a repository's. Will return NoneAccess if the
- // user does not have access.
- func AccessLevelUnit(user *user_model.User, repo *repo_model.Repository, unitType unit.Type) (perm_model.AccessMode, error) { //nolint
- return accessLevelUnit(db.DefaultContext, user, repo, unitType)
- }
-
- func accessLevelUnit(ctx context.Context, user *user_model.User, repo *repo_model.Repository, unitType unit.Type) (perm_model.AccessMode, error) {
- perm, err := GetUserRepoPermission(ctx, repo, user)
- if err != nil {
- return perm_model.AccessModeNone, err
- }
- return perm.UnitAccessMode(unitType), nil
- }
-
- // HasAccessUnit returns true if user has testMode to the unit of the repository
- func HasAccessUnit(ctx context.Context, user *user_model.User, repo *repo_model.Repository, unitType unit.Type, testMode perm_model.AccessMode) (bool, error) {
- mode, err := accessLevelUnit(ctx, user, repo, unitType)
- return testMode <= mode, err
- }
-
- // CanBeAssigned return true if user can be assigned to issue or pull requests in repo
- // Currently any write access (code, issues or pr's) is assignable, to match assignee list in user interface.
- // FIXME: user could send PullRequest also could be assigned???
- func CanBeAssigned(ctx context.Context, user *user_model.User, repo *repo_model.Repository, _ bool) (bool, error) {
- if user.IsOrganization() {
- return false, fmt.Errorf("Organization can't be added as assignee [user_id: %d, repo_id: %d]", user.ID, repo.ID)
- }
- perm, err := GetUserRepoPermission(ctx, repo, user)
- if err != nil {
- return false, err
- }
- return perm.CanAccessAny(perm_model.AccessModeWrite, unit.TypeCode, unit.TypeIssues, unit.TypePullRequests), nil
- }
-
- // HasAccess returns true if user has access to repo
- func HasAccess(ctx context.Context, userID int64, repo *repo_model.Repository) (bool, error) {
- var user *user_model.User
- var err error
- if userID > 0 {
- user, err = user_model.GetUserByIDCtx(ctx, userID)
- if err != nil {
- return false, err
- }
- }
- perm, err := GetUserRepoPermission(ctx, repo, user)
- if err != nil {
- return false, err
- }
- return perm.HasAccess(), nil
- }
-
- // getUsersWithAccessMode returns users that have at least given access mode to the repository.
- func getUsersWithAccessMode(ctx context.Context, repo *repo_model.Repository, mode perm_model.AccessMode) (_ []*user_model.User, err error) {
- if err = repo.GetOwner(ctx); err != nil {
- return nil, err
- }
-
- e := db.GetEngine(ctx)
- accesses := make([]*Access, 0, 10)
- if err = e.Where("repo_id = ? AND mode >= ?", repo.ID, mode).Find(&accesses); err != nil {
- return nil, err
- }
-
- // Leave a seat for owner itself to append later, but if owner is an organization
- // and just waste 1 unit is cheaper than re-allocate memory once.
- users := make([]*user_model.User, 0, len(accesses)+1)
- if len(accesses) > 0 {
- userIDs := make([]int64, len(accesses))
- for i := 0; i < len(accesses); i++ {
- userIDs[i] = accesses[i].UserID
- }
-
- if err = e.In("id", userIDs).Find(&users); err != nil {
- return nil, err
- }
- }
- if !repo.Owner.IsOrganization() {
- users = append(users, repo.Owner)
- }
-
- return users, nil
- }
-
- // GetRepoReaders returns all users that have explicit read access or higher to the repository.
- func GetRepoReaders(repo *repo_model.Repository) (_ []*user_model.User, err error) {
- return getUsersWithAccessMode(db.DefaultContext, repo, perm_model.AccessModeRead)
- }
-
- // GetRepoWriters returns all users that have write access to the repository.
- func GetRepoWriters(repo *repo_model.Repository) (_ []*user_model.User, err error) {
- return getUsersWithAccessMode(db.DefaultContext, repo, perm_model.AccessModeWrite)
- }
-
- // IsRepoReader returns true if user has explicit read access or higher to the repository.
- func IsRepoReader(ctx context.Context, repo *repo_model.Repository, userID int64) (bool, error) {
- if repo.OwnerID == userID {
- return true, nil
- }
- return db.GetEngine(ctx).Where("repo_id = ? AND user_id = ? AND mode >= ?", repo.ID, userID, perm_model.AccessModeRead).Get(&Access{})
- }
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