open-vault/logical/framework/path_struct.go

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2015-04-17 16:18:21 +00:00
package framework
import (
"encoding/json"
"fmt"
"github.com/hashicorp/vault/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(s logical.Storage) (map[string]interface{}, error) {
entry, err := s.Get(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 := json.Unmarshal(entry.Value, &result); err != nil {
return nil, err
}
return result, nil
}
// Put writes the structure.
func (p *PathStruct) Put(s logical.Storage, v map[string]interface{}) error {
bytes, err := json.Marshal(v)
if err != nil {
return err
}
return s.Put(&logical.StorageEntry{
Key: fmt.Sprintf("struct/%s", p.Name),
Value: bytes,
})
}
// 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.WriteOperation: p.pathWrite,
},
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(
req *logical.Request, d *FieldData) (*logical.Response, error) {
v, err := p.Get(req.Storage)
if err != nil {
return nil, err
}
return &logical.Response{
Data: v,
}, nil
}
func (p *PathStruct) pathWrite(
req *logical.Request, d *FieldData) (*logical.Response, error) {
err := p.Put(req.Storage, d.Raw)
return nil, err
}