252 lines
7.8 KiB
Go
252 lines
7.8 KiB
Go
package role
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import (
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"RenewCMS/api/pkg/access"
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"RenewCMS/api/pkg/apperr"
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"RenewCMS/api/pkg/payload"
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validator "RenewCMS/api/pkg/validator"
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domain "RenewCMS/internal/domain/role"
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"RenewCMS/internal/infrastructure/useCases"
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"encoding/json"
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"errors"
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"log"
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"net/http"
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"strconv"
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"github.com/go-chi/chi/v5"
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)
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type Handler struct {
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ListUseCase *useCases.ListRolesUseCase
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GetUseCase *useCases.GetRoleUseCase
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CreateUseCase *useCases.CreateRoleUseCase
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UpdateUseCase *useCases.UpdateRoleUseCase
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DeleteUseCase *useCases.DeleteRoleUseCase
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ReassignUseCase *useCases.ReassignRoleMembersUseCase
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}
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func NewHandler(list *useCases.ListRolesUseCase, get *useCases.GetRoleUseCase, create *useCases.CreateRoleUseCase, update *useCases.UpdateRoleUseCase, deleteUseCase *useCases.DeleteRoleUseCase, reassign *useCases.ReassignRoleMembersUseCase) *Handler {
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return &Handler{ListUseCase: list, GetUseCase: get, CreateUseCase: create, UpdateUseCase: update, DeleteUseCase: deleteUseCase, ReassignUseCase: reassign}
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}
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type GrantRequest struct {
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Key string `json:"key" validate:"required,max=100"`
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Scope string `json:"scope"`
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}
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type PostRole struct {
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Name string `json:"name" validate:"required,max=100"`
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Description string `json:"description" validate:"max=255"`
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Grants []GrantRequest `json:"grants" validate:"dive"`
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}
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type PutRole struct {
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Name string `json:"name" validate:"required,max=100"`
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Description string `json:"description" validate:"max=255"`
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Grants []GrantRequest `json:"grants" validate:"dive"`
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Version uint32 `json:"version" validate:"required,min=1"`
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}
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type ResetRole struct {
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Version uint32 `json:"version" validate:"required,min=1"`
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}
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type ReassignRole struct {
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TargetRoleID uint32 `json:"target_role_id" validate:"required"`
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}
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func toGrants(requested []GrantRequest) []domain.Grant {
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grants := make([]domain.Grant, 0, len(requested))
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for _, grant := range requested {
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grants = append(grants, domain.Grant{Key: grant.Key, Scope: domain.Scope(grant.Scope)})
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}
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return grants
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}
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func parseRoleId(r *http.Request) (uint32, error) {
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id, err := strconv.ParseUint(chi.URLParam(r, "id"), 10, 32)
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return uint32(id), err
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}
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func decodeRequest(w http.ResponseWriter, r *http.Request, request any) bool {
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if err := json.NewDecoder(r.Body).Decode(request); err != nil {
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http.Error(w, apperr.BodyErrorMessage, http.StatusBadRequest)
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return false
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}
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if err := validator.Validate.Struct(request); err != nil {
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http.Error(w, err.Error(), http.StatusBadRequest)
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return false
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}
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return true
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}
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func readId(w http.ResponseWriter, r *http.Request) (uint32, bool) {
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id, err := parseRoleId(r)
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if err != nil {
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http.Error(w, apperr.IdUint32ErrorMessage, http.StatusBadRequest)
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return 0, false
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}
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return id, true
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}
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func writeJSON(w http.ResponseWriter, status int, payload any) {
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body, err := json.Marshal(payload)
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if err != nil {
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http.Error(w, "Failed to encode response", http.StatusInternalServerError)
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return
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}
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if status != http.StatusOK {
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w.WriteHeader(status)
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}
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if _, err := w.Write(body); err != nil {
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log.Printf("Failed to write response: %v", err)
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}
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}
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type refusal struct {
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cause error
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status int
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message string
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}
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var refusals = []refusal{
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{domain.ErrRoleNotFound, http.StatusNotFound, apperr.RoleNotFoundErrorMessage},
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{domain.ErrRoleLocked, http.StatusForbidden, apperr.RoleLockedErrorMessage},
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{domain.ErrBuiltInRole, http.StatusConflict, apperr.RoleBuiltInErrorMessage},
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{domain.ErrBuiltInName, http.StatusBadRequest, apperr.BuiltInNameErrorMessage},
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{domain.ErrNotBuiltIn, http.StatusBadRequest, apperr.NotBuiltInErrorMessage},
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{domain.ErrOwnRole, http.StatusForbidden, apperr.OwnRoleErrorMessage},
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{domain.ErrRoleNameTaken, http.StatusConflict, apperr.RoleNameTakenErrorMessage},
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{domain.ErrRoleConflict, http.StatusConflict, apperr.RoleConflictErrorMessage},
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{domain.ErrRoleHasMembers, http.StatusConflict, apperr.RoleHasMembersErrorMessage},
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{domain.ErrReassignTargetNotFound, http.StatusConflict, apperr.ReassignTargetNotFoundErrorMessage},
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{domain.ErrInvalidReassign, http.StatusBadRequest, apperr.InvalidReassignErrorMessage},
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{domain.ErrInvalidRoleName, http.StatusBadRequest, apperr.InvalidRoleNameErrorMessage},
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{domain.ErrUnknownPermission, http.StatusBadRequest, apperr.UnknownPermissionErrorMessage},
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{domain.ErrInvalidScope, http.StatusBadRequest, apperr.InvalidScopeErrorMessage},
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{domain.ErrOwnerOnlyGrant, http.StatusBadRequest, apperr.OwnerOnlyPermissionErrorMessage},
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{domain.ErrDuplicateGrant, http.StatusBadRequest, apperr.DuplicatePermissionErrorMessage},
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{domain.ErrUnknownContentType, http.StatusBadRequest, apperr.UnknownContentTypeErrorMessage},
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}
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func writeRoleError(w http.ResponseWriter, err error) {
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if access.WriteIfMissingPermission(w, err) {
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return
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}
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var escalation domain.EscalationError
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if errors.As(err, &escalation) {
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w.Header().Set(apperr.EscalationHeader, escalation.Key)
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http.Error(w, apperr.EscalationErrorMessage, http.StatusForbidden)
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return
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}
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for _, candidate := range refusals {
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if errors.Is(err, candidate.cause) {
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http.Error(w, candidate.message, candidate.status)
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return
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}
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}
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http.Error(w, "Internal server error", http.StatusInternalServerError)
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}
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func (h *Handler) List(w http.ResponseWriter, _ *http.Request) {
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listed, err := h.ListUseCase.List()
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if err != nil {
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writeRoleError(w, err)
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return
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}
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writeJSON(w, http.StatusOK, payload.RoleViewsOf(listed))
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}
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func (h *Handler) Get(w http.ResponseWriter, r *http.Request) {
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id, ok := readId(w, r)
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if !ok {
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return
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}
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found, err := h.GetUseCase.Get(id)
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if err != nil {
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writeRoleError(w, err)
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return
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}
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writeJSON(w, http.StatusOK, payload.RoleViewOf(found))
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}
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func (h *Handler) Create(w http.ResponseWriter, r *http.Request) {
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var request PostRole
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if !decodeRequest(w, r, &request) {
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return
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}
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created, err := h.CreateUseCase.Create(r.Context(), useCases.CreateRoleCommand{
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Caller: access.CallerOf(r), Name: request.Name, Description: request.Description, Grants: toGrants(request.Grants),
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})
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if err != nil {
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writeRoleError(w, err)
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return
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}
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writeJSON(w, http.StatusCreated, payload.RoleViewOf(created))
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}
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func (h *Handler) Update(w http.ResponseWriter, r *http.Request) {
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id, ok := readId(w, r)
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if !ok {
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return
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}
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var request PutRole
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if !decodeRequest(w, r, &request) {
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return
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}
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updated, err := h.UpdateUseCase.Update(r.Context(), useCases.UpdateRoleCommand{
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Caller: access.CallerOf(r), ID: id, Name: request.Name, Description: request.Description, Grants: toGrants(request.Grants), Version: request.Version,
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})
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if err != nil {
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writeRoleError(w, err)
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return
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}
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writeJSON(w, http.StatusOK, payload.RoleViewOf(updated))
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}
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func (h *Handler) Reset(w http.ResponseWriter, r *http.Request) {
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id, ok := readId(w, r)
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if !ok {
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return
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}
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var request ResetRole
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if !decodeRequest(w, r, &request) {
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return
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}
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restored, err := h.UpdateUseCase.Reset(r.Context(), useCases.ResetRoleCommand{Caller: access.CallerOf(r), ID: id, Version: request.Version})
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if err != nil {
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writeRoleError(w, err)
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return
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}
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writeJSON(w, http.StatusOK, payload.RoleViewOf(restored))
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}
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func (h *Handler) Delete(w http.ResponseWriter, r *http.Request) {
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id, ok := readId(w, r)
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if !ok {
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return
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}
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if err := h.DeleteUseCase.Delete(r.Context(), useCases.DeleteRoleCommand{Caller: access.CallerOf(r), ID: id}); err != nil {
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writeRoleError(w, err)
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return
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}
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w.WriteHeader(http.StatusNoContent)
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}
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func (h *Handler) Reassign(w http.ResponseWriter, r *http.Request) {
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id, ok := readId(w, r)
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if !ok {
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return
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}
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var request ReassignRole
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if !decodeRequest(w, r, &request) {
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return
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}
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moved, err := h.ReassignUseCase.Reassign(r.Context(), useCases.ReassignRoleMembersCommand{Caller: access.CallerOf(r), SourceID: id, TargetID: request.TargetRoleID})
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if err != nil {
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writeRoleError(w, err)
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return
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}
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writeJSON(w, http.StatusOK, map[string]int{"moved": moved})
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}
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