open-vault/sdk/framework/path_struct.go

128 lines
3.0 KiB
Go

// Copyright (c) HashiCorp, Inc.
// SPDX-License-Identifier: MPL-2.0
package framework
import (
"context"
"encoding/json"
"fmt"
"github.com/hashicorp/vault/sdk/helper/jsonutil"
"github.com/hashicorp/vault/sdk/logical"
)
// PathStruct can be used to generate a path that stores a struct
// in the storage. This structure is a map[string]interface{} but the
// types are set according to the schema in this structure.
type PathStruct struct {
Name string
Path string
Schema map[string]*FieldSchema
HelpSynopsis string
HelpDescription string
Read bool
}
// Get reads the structure.
func (p *PathStruct) Get(ctx context.Context, s logical.Storage) (map[string]interface{}, error) {
entry, err := s.Get(ctx, fmt.Sprintf("struct/%s", p.Name))
if err != nil {
return nil, err
}
if entry == nil {
return nil, nil
}
var result map[string]interface{}
if err := jsonutil.DecodeJSON(entry.Value, &result); err != nil {
return nil, err
}
return result, nil
}
// Put writes the structure.
func (p *PathStruct) Put(ctx context.Context, s logical.Storage, v map[string]interface{}) error {
bytes, err := json.Marshal(v)
if err != nil {
return err
}
return s.Put(ctx, &logical.StorageEntry{
Key: fmt.Sprintf("struct/%s", p.Name),
Value: bytes,
})
}
// Delete removes the structure.
func (p *PathStruct) Delete(ctx context.Context, s logical.Storage) error {
return s.Delete(ctx, fmt.Sprintf("struct/%s", p.Name))
}
// Paths are the paths to append to the Backend paths.
func (p *PathStruct) Paths() []*Path {
// The single path we support to read/write this config
path := &Path{
Pattern: p.Path,
Fields: p.Schema,
Callbacks: map[logical.Operation]OperationFunc{
logical.CreateOperation: p.pathWrite(),
logical.UpdateOperation: p.pathWrite(),
logical.DeleteOperation: p.pathDelete(),
},
ExistenceCheck: p.pathExistenceCheck(),
HelpSynopsis: p.HelpSynopsis,
HelpDescription: p.HelpDescription,
}
// If we support reads, add that
if p.Read {
path.Callbacks[logical.ReadOperation] = p.pathRead()
}
return []*Path{path}
}
func (p *PathStruct) pathRead() OperationFunc {
return func(ctx context.Context, req *logical.Request, d *FieldData) (*logical.Response, error) {
v, err := p.Get(ctx, req.Storage)
if err != nil {
return nil, err
}
return &logical.Response{
Data: v,
}, nil
}
}
func (p *PathStruct) pathWrite() OperationFunc {
return func(ctx context.Context, req *logical.Request, d *FieldData) (*logical.Response, error) {
err := p.Put(ctx, req.Storage, d.Raw)
return nil, err
}
}
func (p *PathStruct) pathDelete() OperationFunc {
return func(ctx context.Context, req *logical.Request, d *FieldData) (*logical.Response, error) {
err := p.Delete(ctx, req.Storage)
return nil, err
}
}
func (p *PathStruct) pathExistenceCheck() ExistenceFunc {
return func(ctx context.Context, req *logical.Request, d *FieldData) (bool, error) {
v, err := p.Get(ctx, req.Storage)
if err != nil {
return false, err
}
return v != nil, nil
}
}