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input.go
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input.go
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// Copyright 2023 Mia srl
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package core
import (
"encoding/json"
"fmt"
"net/http"
"net/url"
"time"
"github.com/rond-authz/rond/logging"
"github.com/rond-authz/rond/types"
)
type Input struct {
Request InputRequest `json:"request"`
Response InputResponse `json:"response"`
ClientType string `json:"clientType,omitempty"`
User InputUser `json:"user"`
CustomMetadata any `json:"metadata,omitempty"`
}
type InputRequest struct {
Body interface{} `json:"body,omitempty"`
Headers http.Header `json:"headers,omitempty"`
Query url.Values `json:"query,omitempty"`
PathParams map[string]string `json:"pathParams,omitempty"`
Method string `json:"method"`
Path string `json:"path"`
}
type InputResponse struct {
Body interface{} `json:"body,omitempty"`
}
type InputUser struct {
ID string `json:"id,omitempty"`
Properties map[string]interface{} `json:"properties,omitempty"`
Groups []string `json:"groups,omitempty"`
Bindings []types.Binding `json:"bindings,omitempty"`
Roles []types.Role `json:"roles,omitempty"`
ResourcePermissionsMap PermissionsOnResourceMap `json:"resourcePermissionsMap,omitempty"`
}
func (input *Input) buildOptimizedResourcePermissionsMap(logger logging.Logger, enableResourcePermissionsMapOptimization bool) {
if !enableResourcePermissionsMapOptimization {
return
}
logger.Info("preparing optimized resourcePermissionMap for OPA evaluator")
opaPermissionsMapTime := time.Now()
user := input.User
permissionsOnResourceMap := make(PermissionsOnResourceMap, 0)
rolesMap := buildRolesMap(user.Roles)
for _, binding := range user.Bindings {
if binding.Resource == nil {
continue
}
for _, role := range binding.Roles {
rolePermissions, ok := rolesMap[role]
if !ok {
continue
}
for _, permission := range rolePermissions {
key := buildPermissionOnResourceKey(permission, binding.Resource.ResourceType, binding.Resource.ResourceID)
permissionsOnResourceMap[key] = true
}
}
for _, permission := range binding.Permissions {
key := buildPermissionOnResourceKey(permission, binding.Resource.ResourceType, binding.Resource.ResourceID)
permissionsOnResourceMap[key] = true
}
}
input.User.ResourcePermissionsMap = permissionsOnResourceMap
logger.WithField("resourcePermissionMapCreationTime", fmt.Sprintf("%+v", time.Since(opaPermissionsMapTime))).Trace("resource permission map creation")
}
type RegoInputOptions struct {
EnableResourcePermissionsMapOptimization bool
}
func CreateRegoQueryInput(
logger logging.Logger,
input Input,
options RegoInputOptions,
) ([]byte, error) {
opaInputCreationTime := time.Now()
input.buildOptimizedResourcePermissionsMap(logger, options.EnableResourcePermissionsMapOptimization)
inputBytes, err := json.Marshal(input)
if err != nil {
return nil, fmt.Errorf("%w: %v", ErrFailedInputEncode, err)
}
logger.
WithField("inputCreationTimeMicroseconds", time.Since(opaInputCreationTime).Microseconds()).
Trace("input creation time")
return inputBytes, nil
}