/
credentials.go
264 lines (240 loc) · 8.65 KB
/
credentials.go
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package targets
import (
"context"
"encoding/base64"
"encoding/json"
"fmt"
"github.com/hashicorp/boundary/internal/credential"
credstatic "github.com/hashicorp/boundary/internal/credential/static"
"github.com/hashicorp/boundary/internal/daemon/controller/handlers"
"github.com/hashicorp/boundary/internal/errors"
serverpb "github.com/hashicorp/boundary/internal/gen/controller/servers/services"
"github.com/hashicorp/boundary/internal/session"
"github.com/hashicorp/boundary/internal/types/subtypes"
pb "github.com/hashicorp/boundary/sdk/pbs/controller/api/resources/targets"
"google.golang.org/protobuf/proto"
"google.golang.org/protobuf/types/known/structpb"
)
// dynamicToWorkerCredential converts the strongly typed credential.Dynamic into
// a session.Credential suitable for passing to a Boundary worker.
func dynamicToWorkerCredential(ctx context.Context, cred credential.Dynamic) (session.Credential, error) {
const op = "targets.dynamicToWorkerCredential"
var workerCred *serverpb.Credential
switch c := cred.(type) {
case credential.UsernamePassword:
workerCred = &serverpb.Credential{
Credential: &serverpb.Credential_UsernamePassword{
UsernamePassword: &serverpb.UsernamePassword{
Username: c.Username(),
Password: string(c.Password()),
},
},
}
case credential.SshPrivateKey:
workerCred = &serverpb.Credential{
Credential: &serverpb.Credential_SshPrivateKey{
SshPrivateKey: &serverpb.SshPrivateKey{
Username: c.Username(),
PrivateKey: string(c.PrivateKey()),
PrivateKeyPassphrase: string(c.PrivateKeyPassphrase()),
},
},
}
default:
return nil, errors.New(ctx, errors.InvalidParameter, op, fmt.Sprintf("unsupported credential %T", c))
}
data, err := proto.Marshal(workerCred)
if err != nil {
return nil, errors.Wrap(ctx, err, op, errors.WithMsg("marshalling dynamic secret to proto"))
}
return data, nil
}
func dynamicToSessionCredential(ctx context.Context, cred credential.Dynamic) (*pb.SessionCredential, error) {
const op = "targets.dynamicToSessionCredential"
l := cred.Library()
secret := cred.Secret()
// TODO: Access the json directly from the vault response instead of re-marshalling it.
jSecret, err := json.Marshal(secret)
if err != nil {
return nil, errors.Wrap(ctx, err, op, errors.WithMsg("marshalling secret to json"))
}
var sSecret *structpb.Struct
switch secret.(type) {
case map[string]interface{}:
// In this case we actually have to re-decode it. The proto wrappers
// choke on json.Number and at the time I'm writing this I don't
// have time to write a walk function to dig through with reflect
// and find all json.Numbers and replace them. So we eat the
// inefficiency. So note that we are specifically _not_ using a
// decoder with UseNumber here.
var dSecret map[string]interface{}
if err := json.Unmarshal(jSecret, &dSecret); err != nil {
return nil, errors.Wrap(ctx, err, op, errors.WithMsg("decoding json for proto marshaling"))
}
sSecret, err = structpb.NewStruct(dSecret)
if err != nil {
return nil, errors.Wrap(ctx, err, op, errors.WithMsg("creating proto struct for secret"))
}
}
var credType string
var credData *structpb.Struct
if l.CredentialType() != credential.UnspecifiedType {
credType = string(l.CredentialType())
switch c := cred.(type) {
case credential.UsernamePassword:
credData, err = handlers.ProtoToStruct(
&pb.UsernamePasswordCredential{
Username: c.Username(),
Password: string(c.Password()),
},
)
if err != nil {
return nil, errors.Wrap(ctx, err, op, errors.WithMsg("creating proto struct for credential"))
}
case credential.SshPrivateKey:
credData, err = handlers.ProtoToStruct(
&pb.SshPrivateKeyCredential{
Username: c.Username(),
PrivateKey: string(c.PrivateKey()),
PrivateKeyPassphrase: string(c.PrivateKeyPassphrase()),
},
)
if err != nil {
return nil, errors.Wrap(ctx, err, op, errors.WithMsg("creating proto struct for credential"))
}
default:
return nil, errors.New(ctx, errors.InvalidParameter, op, fmt.Sprintf("unsupported credential %T", c))
}
}
return &pb.SessionCredential{
CredentialSource: &pb.CredentialSource{
Id: l.GetPublicId(),
Name: l.GetName(),
Description: l.GetDescription(),
CredentialStoreId: l.GetStoreId(),
Type: subtypes.SubtypeFromId(credentialDomain, l.GetPublicId()).String(),
CredentialType: credType,
},
Secret: &pb.SessionSecret{
Raw: base64.StdEncoding.EncodeToString(jSecret),
Decoded: sSecret,
},
Credential: credData,
}, nil
}
// staticToWorkerCredential converts the credential.Static into
// a session.Credential suitable for passing to a Boundary worker.
func staticToWorkerCredential(ctx context.Context, cred credential.Static) (session.Credential, error) {
const op = "targets.staticToWorkerCredential"
var workerCred *serverpb.Credential
switch c := cred.(type) {
case *credstatic.UsernamePasswordCredential:
workerCred = &serverpb.Credential{
Credential: &serverpb.Credential_UsernamePassword{
UsernamePassword: &serverpb.UsernamePassword{
Username: c.GetUsername(),
Password: string(c.GetPassword()),
},
},
}
case *credstatic.SshPrivateKeyCredential:
workerCred = &serverpb.Credential{
Credential: &serverpb.Credential_SshPrivateKey{
SshPrivateKey: &serverpb.SshPrivateKey{
Username: c.GetUsername(),
PrivateKey: string(c.GetPrivateKey()),
PrivateKeyPassphrase: string(c.GetPrivateKeyPassphrase()),
},
},
}
default:
return nil, errors.New(ctx, errors.InvalidParameter, op, fmt.Sprintf("unsupported credential %T", c))
}
data, err := proto.Marshal(workerCred)
if err != nil {
return nil, errors.Wrap(ctx, err, op, errors.WithMsg("marshalling static secret to proto"))
}
return data, nil
}
func staticToSessionCredential(ctx context.Context, cred credential.Static) (*pb.SessionCredential, error) {
const op = "targets.staticToSessionCredential"
var credType string
var credData *structpb.Struct
var secret map[string]interface{}
switch c := cred.(type) {
case *credstatic.UsernamePasswordCredential:
var err error
credType = string(credential.UsernamePasswordType)
credData, err = handlers.ProtoToStruct(
&pb.UsernamePasswordCredential{
Username: c.GetUsername(),
Password: string(c.GetPassword()),
},
)
secret = map[string]interface{}{
"username": c.GetUsername(),
"password": string(c.GetPassword()),
}
if err != nil {
return nil, errors.Wrap(ctx, err, op, errors.WithMsg("creating proto struct for username password credential"))
}
case *credstatic.SshPrivateKeyCredential:
var err error
credType = string(credential.SshPrivateKeyType)
credData, err = handlers.ProtoToStruct(
&pb.SshPrivateKeyCredential{
Username: c.GetUsername(),
PrivateKey: string(c.GetPrivateKey()),
PrivateKeyPassphrase: string(c.GetPrivateKeyPassphrase()),
},
)
secret = map[string]interface{}{
"username": c.GetUsername(),
"private_key": string(c.GetPrivateKey()),
}
if len(c.GetPrivateKeyPassphrase()) > 0 {
secret["private_key_passphrase"] = string(c.GetPrivateKeyPassphrase())
}
if err != nil {
return nil, errors.Wrap(ctx, err, op, errors.WithMsg("creating proto struct for ssh private key credential"))
}
case *credstatic.JsonCredential:
var err error
credType = string(credential.JsonType)
object := map[string]interface{}{}
err = json.Unmarshal(c.GetObject(), &object)
if err != nil {
return nil, errors.New(ctx, errors.InvalidParameter, op, "unmarshalling json")
}
credData, err = structpb.NewStruct(object)
if err != nil {
return nil, errors.Wrap(ctx, err, op, errors.WithMsg("creating proto struct for json credential"))
}
secret = object
default:
return nil, errors.New(ctx, errors.InvalidParameter, op, fmt.Sprintf("unsupported credential %T", c))
}
jSecret, err := json.Marshal(secret)
if err != nil {
return nil, errors.Wrap(ctx, err, op, errors.WithMsg("marshalling static secret to json"))
}
sSecret, err := structpb.NewStruct(secret)
if err != nil {
return nil, errors.Wrap(ctx, err, op, errors.WithMsg("creating proto struct for secret"))
}
return &pb.SessionCredential{
CredentialSource: &pb.CredentialSource{
Id: cred.GetPublicId(),
Name: cred.GetName(),
Description: cred.GetDescription(),
CredentialStoreId: cred.GetStoreId(),
Type: credstatic.Subtype.String(),
CredentialType: credType,
},
Secret: &pb.SessionSecret{
Raw: base64.StdEncoding.EncodeToString(jSecret),
Decoded: sSecret,
},
Credential: credData,
}, nil
}