1 files changed, 69 insertions, 0 deletions
diff --git a/store/sqlstore/user_store.go b/store/sqlstore/user_store.go
index a695e4aa8..203ad4c26 100644
--- a/store/sqlstore/user_store.go
+++ b/store/sqlstore/user_store.go
@@ -10,6 +10,8 @@ import (
 	"strconv"
 	"strings"
 
+	"github.com/mattermost/gorp"
+
 	"github.com/mattermost/mattermost-server/einterfaces"
 	"github.com/mattermost/mattermost-server/model"
 	"github.com/mattermost/mattermost-server/store"
@@ -1247,3 +1249,70 @@ func (us SqlUserStore) GetEtagForProfilesNotInTeam(teamId string) store.StoreCha
 		}
 	})
 }
+
+func (us SqlUserStore) ClearAllCustomRoleAssignments() store.StoreChannel {
+	return store.Do(func(result *store.StoreResult) {
+		builtInRoles := model.MakeDefaultRoles()
+		lastUserId := strings.Repeat("0", 26)
+
+		for true {
+			var transaction *gorp.Transaction
+			var err error
+
+			if transaction, err = us.GetMaster().Begin(); err != nil {
+				result.Err = model.NewAppError("SqlUserStore.ClearAllCustomRoleAssignments", "store.sql_user.clear_all_custom_role_assignments.open_transaction.app_error", nil, err.Error(), http.StatusInternalServerError)
+				return
+			}
+
+			var users []*model.User
+			if _, err := transaction.Select(&users, "SELECT * from Users WHERE Id > :Id ORDER BY Id LIMIT 1000", map[string]interface{}{"Id": lastUserId}); err != nil {
+				if err2 := transaction.Rollback(); err2 != nil {
+					result.Err = model.NewAppError("SqlUserStore.ClearAllCustomRoleAssignments", "store.sql_user.clear_all_custom_role_assignments.rollback_transaction.app_error", nil, err2.Error(), http.StatusInternalServerError)
+					return
+				}
+				result.Err = model.NewAppError("SqlUserStore.ClearAllCustomRoleAssignments", "store.sql_user.clear_all_custom_role_assignments.select.app_error", nil, err.Error(), http.StatusInternalServerError)
+				return
+			}
+
+			if len(users) == 0 {
+				break
+			}
+
+			for _, user := range users {
+				lastUserId = user.Id
+
+				var newRoles []string
+
+				for _, role := range strings.Fields(user.Roles) {
+					for name := range builtInRoles {
+						if name == role {
+							newRoles = append(newRoles, role)
+							break
+						}
+					}
+				}
+
+				newRolesString := strings.Join(newRoles, " ")
+				if newRolesString != user.Roles {
+					if _, err := transaction.Exec("UPDATE Users SET Roles = :Roles WHERE Id = :Id", map[string]interface{}{"Roles": newRolesString, "Id": user.Id}); err != nil {
+						if err2 := transaction.Rollback(); err2 != nil {
+							result.Err = model.NewAppError("SqlUserStore.ClearAllCustomRoleAssignments", "store.sql_user.clear_all_custom_role_assignments.rollback_transaction.app_error", nil, err2.Error(), http.StatusInternalServerError)
+							return
+						}
+						result.Err = model.NewAppError("SqlUserStore.ClearAllCustomRoleAssignments", "store.sql_user.clear_all_custom_role_assignments.update.app_error", nil, err.Error(), http.StatusInternalServerError)
+						return
+					}
+				}
+			}
+
+			if err := transaction.Commit(); err != nil {
+				if err2 := transaction.Rollback(); err2 != nil {
+					result.Err = model.NewAppError("SqlUserStore.ClearAllCustomRoleAssignments", "store.sql_user.clear_all_custom_role_assignments.rollback_transaction.app_error", nil, err2.Error(), http.StatusInternalServerError)
+					return
+				}
+				result.Err = model.NewAppError("SqlUserStore.ClearAllCustomRoleAssignments", "store.sql_user.clear_all_custom_role_assignments.commit_transaction.app_error", nil, err.Error(), http.StatusInternalServerError)
+				return
+			}
+		}
+	})
+}