xref: /third_party/node/src/permission/permission.h

#ifndef SRC_PERMISSION_PERMISSION_H_
#define SRC_PERMISSION_PERMISSION_H_

#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS

#include "debug_utils.h"
#include "node_options.h"
#include "permission/child_process_permission.h"
#include "permission/fs_permission.h"
#include "permission/permission_base.h"
#include "permission/worker_permission.h"
#include "v8.h"

#include <string_view>
#include <unordered_map>

namespace node {

class Environment;

namespace permission {

#define THROW_IF_INSUFFICIENT_PERMISSIONS(env, perm_, resource_, ...)          \
  do {                                                                         \
    if (UNLIKELY(!(env)->permission()->is_granted(perm_, resource_))) {        \
      node::permission::Permission::ThrowAccessDenied(                         \
          (env), perm_, resource_);                                            \
      return __VA_ARGS__;                                                      \
    }                                                                          \
  } while (0)

class Permission {
 public:
  Permission();

  FORCE_INLINE bool is_granted(const PermissionScope permission,
                               const std::string_view& res = "") const {
    if (LIKELY(!enabled_)) return true;
    return is_scope_granted(permission, res);
  }

  static PermissionScope StringToPermission(const std::string& perm);
  static const char* PermissionToString(PermissionScope perm);
  static void ThrowAccessDenied(Environment* env,
                                PermissionScope perm,
                                const std::string_view& res);

  // CLI Call
  void Apply(const std::string& allow, PermissionScope scope);
  void EnablePermissions();

 private:
  COLD_NOINLINE bool is_scope_granted(const PermissionScope permission,
                                      const std::string_view& res = "") const {
    auto perm_node = nodes_.find(permission);
    if (perm_node != nodes_.end()) {
      return perm_node->second->is_granted(permission, res);
    }
    return false;
  }

  std::unordered_map<PermissionScope, std::shared_ptr<PermissionBase>> nodes_;
  bool enabled_;
};

}  // namespace permission

}  // namespace node

#endif  // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS
#endif  // SRC_PERMISSION_PERMISSION_H_