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// Copyright (c) 2016-present Mattermost, Inc. All Rights Reserved.
// See License.txt for license information.
package app
import (
"fmt"
"net/http"
"strings"
"github.com/mattermost/mattermost-server/mlog"
"github.com/mattermost/mattermost-server/model"
)
func (a *App) SessionHasPermissionTo(session model.Session, permission *model.Permission) bool {
return a.RolesGrantPermission(session.GetUserRoles(), permission.Id)
}
/// DO NOT USE: LEGACY
func (a *App) SessionHasPermissionToTeam(session model.Session, teamId string, permission *model.Permission) bool {
if teamId == "" {
return false
}
teamMember := session.GetTeamByTeamId(teamId)
if teamMember != nil {
if a.RolesGrantPermission(teamMember.GetRoles(), permission.Id) {
return true
}
}
return a.RolesGrantPermission(session.GetUserRoles(), permission.Id)
}
func (a *App) SessionHasPermissionToChannel(session model.Session, channelId string, permission *model.Permission) bool {
if channelId == "" {
return false
}
cmc := a.Srv.Store.Channel().GetAllChannelMembersForUser(session.UserId, true, true)
var channelRoles []string
if cmcresult := <-cmc; cmcresult.Err == nil {
ids := cmcresult.Data.(map[string]string)
if roles, ok := ids[channelId]; ok {
channelRoles = strings.Fields(roles)
if a.RolesGrantPermission(channelRoles, permission.Id) {
return true
}
}
}
channel, err := a.GetChannel(channelId)
if err == nil && channel.TeamId != "" {
return a.SessionHasPermissionToTeam(session, channel.TeamId, permission)
}
if err != nil && err.StatusCode == http.StatusNotFound {
return false
}
return a.SessionHasPermissionTo(session, permission)
}
func (a *App) SessionHasPermissionToChannelByPost(session model.Session, postId string, permission *model.Permission) bool {
var channelMember *model.ChannelMember
if result := <-a.Srv.Store.Channel().GetMemberForPost(postId, session.UserId); result.Err == nil {
channelMember = result.Data.(*model.ChannelMember)
if a.RolesGrantPermission(channelMember.GetRoles(), permission.Id) {
return true
}
}
if result := <-a.Srv.Store.Channel().GetForPost(postId); result.Err == nil {
channel := result.Data.(*model.Channel)
if channel.TeamId != "" {
return a.SessionHasPermissionToTeam(session, channel.TeamId, permission)
}
}
return a.SessionHasPermissionTo(session, permission)
}
func (a *App) SessionHasPermissionToUser(session model.Session, userId string) bool {
if userId == "" {
return false
}
if session.UserId == userId {
return true
}
if a.SessionHasPermissionTo(session, model.PERMISSION_EDIT_OTHER_USERS) {
return true
}
return false
}
func (a *App) HasPermissionTo(askingUserId string, permission *model.Permission) bool {
user, err := a.GetUser(askingUserId)
if err != nil {
return false
}
roles := user.GetRoles()
return a.RolesGrantPermission(roles, permission.Id)
}
func (a *App) HasPermissionToTeam(askingUserId string, teamId string, permission *model.Permission) bool {
if teamId == "" || askingUserId == "" {
return false
}
teamMember, err := a.GetTeamMember(teamId, askingUserId)
if err != nil {
return false
}
roles := teamMember.GetRoles()
if a.RolesGrantPermission(roles, permission.Id) {
return true
}
return a.HasPermissionTo(askingUserId, permission)
}
func (a *App) HasPermissionToChannel(askingUserId string, channelId string, permission *model.Permission) bool {
if channelId == "" || askingUserId == "" {
return false
}
channelMember, err := a.GetChannelMember(channelId, askingUserId)
if err == nil {
roles := channelMember.GetRoles()
if a.RolesGrantPermission(roles, permission.Id) {
return true
}
}
var channel *model.Channel
channel, err = a.GetChannel(channelId)
if err == nil {
return a.HasPermissionToTeam(askingUserId, channel.TeamId, permission)
}
return a.HasPermissionTo(askingUserId, permission)
}
func (a *App) HasPermissionToChannelByPost(askingUserId string, postId string, permission *model.Permission) bool {
var channelMember *model.ChannelMember
if result := <-a.Srv.Store.Channel().GetMemberForPost(postId, askingUserId); result.Err == nil {
channelMember = result.Data.(*model.ChannelMember)
if a.RolesGrantPermission(channelMember.GetRoles(), permission.Id) {
return true
}
}
if result := <-a.Srv.Store.Channel().GetForPost(postId); result.Err == nil {
channel := result.Data.(*model.Channel)
return a.HasPermissionToTeam(askingUserId, channel.TeamId, permission)
}
return a.HasPermissionTo(askingUserId, permission)
}
func (a *App) HasPermissionToUser(askingUserId string, userId string) bool {
if askingUserId == userId {
return true
}
if a.HasPermissionTo(askingUserId, model.PERMISSION_EDIT_OTHER_USERS) {
return true
}
return false
}
func (a *App) RolesGrantPermission(roleNames []string, permissionId string) bool {
roles, err := a.GetRolesByNames(roleNames)
if err != nil {
// This should only happen if something is very broken. We can't realistically
// recover the situation, so deny permission and log an error.
mlog.Error("Failed to get roles from database with role names: " + strings.Join(roleNames, ","))
mlog.Error(fmt.Sprint(err))
return false
}
for _, role := range roles {
if role.DeleteAt != 0 {
continue
}
permissions := role.Permissions
for _, permission := range permissions {
if permission == permissionId {
return true
}
}
}
return false
}
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