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systemuserservice.go
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systemuserservice.go
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package systemuserservice
import (
"github.com/chef/automate/components/automate-cli/pkg/verifyserver/constants"
"github.com/chef/automate/components/automate-cli/pkg/verifyserver/models"
"github.com/chef/automate/lib/executil"
"github.com/chef/automate/lib/logger"
"github.com/chef/automate/lib/userutils"
)
type SystemUserService interface {
GetSystemUserServiceDetails() *models.SystemUserResponse
}
type SystemUserServiceImp struct {
exec executil.ExecCmdService
user userutils.UserUtil
Log logger.Logger
}
func NewSystemUserService(log logger.Logger, exec executil.ExecCmdService, user userutils.UserUtil) *SystemUserServiceImp {
return &SystemUserServiceImp{
exec: exec,
user: user,
Log: log,
}
}
func (su *SystemUserServiceImp) GetSystemUserServiceDetails() *models.SystemUserResponse {
serviceResponse := &models.SystemUserResponse{}
serviceResponse.Passed = true
serviceResponseArray := []*models.Checks{}
habUserResponse, isHabUserCreated := su.ValidateOrCreateHabUser()
if !habUserResponse.Passed {
serviceResponse.Passed = false
}
// Gets UID for created/existing hab user
uid, err := su.getUserAndGroupID()
if err != nil {
serviceResponse.Passed = false
su.Log.Error("User ID for hab not found")
}
su.Log.Info("User ID for hab found")
serviceResponse.Id = uid
habGroupResponse := su.ValidateHabGroup()
if !habGroupResponse.Passed {
serviceResponse.Passed = false
}
habUserAndGroupMapResponse := su.ValidateHabUserAndGroupMapping()
if !habUserAndGroupMapResponse.Passed {
serviceResponse.Passed = false
}
if isHabUserCreated {
defer func() {
_, _ = su.exec.Command(constants.USER_DEL_CMD, []string{constants.USER_NAME})
if su.isHabGroupPresent(constants.GROUP_NAME) {
_, _ = su.exec.Command(constants.GROUP_DEL_CMD, []string{constants.GROUP_NAME})
su.Log.Debug("Group hab deleted")
}
}()
}
serviceResponseArray = append(serviceResponseArray, habUserResponse, habGroupResponse, habUserAndGroupMapResponse)
serviceResponse.Checks = serviceResponseArray
return serviceResponse
}
func (su *SystemUserServiceImp) ValidateOrCreateHabUser() (*models.Checks, bool) {
isHabUserPresent := su.isHabUserPresent(constants.USER_NAME)
if !isHabUserPresent {
_, err := su.exec.Command(constants.USER_ADD_CMD, []string{"-U", constants.USER_NAME})
if err != nil {
su.Log.Error("Failed to create user 'hab':", err)
return failureResponse(constants.SYSTEM_USER_HAB_VALIDATION_FAILURE_TITLE, constants.SYSTEM_USER_HAB_ERROR_MSG, constants.SYSTEM_USER_HAB_RESOLUTION_MSG), false
}
su.Log.Debug("Created 'hab' user and group ")
return successResponse(constants.SYSTEM_USER_HAB_VALIDATION_SUCCESS_TITLE, constants.SYSTEM_USER_HAB_SUCCESS_MSG), true
}
su.Log.Debug("User 'hab' found successfully")
return successResponse(constants.SYSTEM_USER_HAB_VALIDATION_SUCCESS_TITLE, constants.SYSTEM_USER_HAB_SUCCESS_MSG), false
}
func (su *SystemUserServiceImp) getUserAndGroupID() (*models.SystemUserID, error) {
systemUserDetails := &models.SystemUserID{}
// Check for available ID in all machine (?)
ids, err := su.user.Lookup(constants.USER_NAME)
if err != nil {
su.Log.Error("User not found:", err)
return systemUserDetails, err
}
if ids != nil {
systemUserDetails.UserID = ids.Uid
systemUserDetails.GroupID = ids.Gid
su.Log.Infof("UID: %s\nGID: %s\n", systemUserDetails.UserID, systemUserDetails.GroupID)
} else {
su.Log.Info("UID not found.")
}
su.Log.Info("Created 'hab' user and group ")
return systemUserDetails, nil
}
func (su *SystemUserServiceImp) ValidateHabGroup() *models.Checks {
isHabGroupPresent := su.isHabGroupPresent(constants.GROUP_NAME)
if !isHabGroupPresent {
su.Log.Error("Group 'hab' doesn't exists")
return failureResponse(constants.SYSTEM_GROUP_HAB_VALIDATION_FAILURE_TITLE, constants.SYSTEM_GROUP_HAB_ERROR_MSG, constants.SYSTEM_GROUP_HAB_RESOLUTION_MSG)
}
su.Log.Debug("Group 'hab' found successfully")
return successResponse(constants.SYSTEM_GROUP_HAB_VALIDATION_SUCCESS_TITLE, constants.SYSTEM_GROUP_HAB_SUCCESS_MSG)
}
func (su *SystemUserServiceImp) ValidateHabUserAndGroupMapping() *models.Checks {
// Check if "hab" user's primary group is "hab" group
userPrimaryGroup := su.checkUserPrimaryGroup(constants.USER_NAME, constants.GROUP_NAME)
if !userPrimaryGroup {
su.Log.Error("Validation failed: Primary group mapping for user 'hab' is not 'hab' group")
return failureResponse(constants.SYSTEM_USERANDGROUP_MAPPING_FAILURE_TITLE, constants.SYSTEM_PRIMARYGROUP_MATCH_ERROR_MSG, constants.SYSTEM_USERANDGROUP_MAPPING_RESOLUTION_MSG)
}
su.Log.Debug("Validation passed: Primary group mapping for user 'hab' is 'hab' group")
return successResponse(constants.SYSTEM_USERANDGROUP_MAPPING_SUCCESS_TITLE, constants.SYSTEM_USERANDGROUP_MAPPING_SUCCESS_MSG)
}
// Check if "hab" user exists
func (su *SystemUserServiceImp) isHabUserPresent(username string) bool {
_, err := su.user.Lookup(username)
if err != nil {
su.Log.Error("Hab user not present: ", err)
return false
}
su.Log.Debug("Hab user exists")
return true
}
// Check if "hab" group exists
func (su *SystemUserServiceImp) isHabGroupPresent(groupname string) bool {
_, err := su.user.LookupGroup(groupname)
if err != nil {
su.Log.Error("Hab group not present: ", err)
return false
}
su.Log.Debug("Hab group exists")
return true
}
// Check for user's primary group
func (su *SystemUserServiceImp) checkUserPrimaryGroup(username, groupname string) bool {
sysUser, err := su.user.Lookup(username)
if err != nil {
su.Log.Error("User not found: ", err)
return false
}
// Get the user's primary group
group, err := su.user.LookupGroupId(sysUser.Gid)
if err != nil {
su.Log.Error("Group not found by Gid '"+sysUser.Gid+"': ", err)
return false
}
if group.Name != groupname {
su.Log.Debug("User's primary group is not hab")
return false
}
su.Log.Debug("User's primary group is hab with gid '" + sysUser.Gid + "'")
return true
}
func successResponse(title string, successMsg string) *models.Checks {
checkResponse := &models.Checks{
Title: title,
Passed: true,
SuccessMsg: successMsg,
ErrorMsg: "",
ResolutionMsg: "",
}
return checkResponse
}
func failureResponse(title string, errorMsg string, resolutionMsg string) *models.Checks {
checkResponse := &models.Checks{
Title: title,
Passed: false,
SuccessMsg: "",
ErrorMsg: errorMsg,
ResolutionMsg: resolutionMsg,
}
return checkResponse
}