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path_role.go
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path_role.go
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package huaweicloud
import (
"context"
"errors"
"fmt"
"github.com/hashicorp/vault/sdk/framework"
"github.com/hashicorp/vault/sdk/helper/tokenutil"
"github.com/hashicorp/vault/sdk/logical"
)
func pathRole(b *backend) *framework.Path {
p := &framework.Path{
Pattern: "role/" + framework.GenericNameRegex("role"),
Fields: map[string]*framework.FieldSchema{
"role": {
Type: framework.TypeLowerCaseString,
Required: true,
Description: "The name of the role as it should appear in Vault.",
},
"account": {
Type: framework.TypeString,
Description: "The user's Huawei Cloud account name",
},
"user": {
Type: framework.TypeString,
Description: "The name of user belongs to the Huawei Cloud account",
},
},
ExistenceCheck: b.operationRoleExistenceCheck,
Callbacks: map[logical.Operation]framework.OperationFunc{
logical.CreateOperation: b.operationRoleCreate,
logical.UpdateOperation: b.operationRoleUpdate,
logical.ReadOperation: b.operationRoleRead,
logical.DeleteOperation: b.operationRoleDelete,
},
HelpSynopsis: pathRoleSyn,
HelpDescription: pathRoleDesc,
}
tokenutil.AddTokenFields(p.Fields)
return p
}
func pathListRoles(b *backend) *framework.Path {
return &framework.Path{
Pattern: "roles/?",
Callbacks: map[logical.Operation]framework.OperationFunc{
logical.ListOperation: b.operationRoleList,
},
HelpSynopsis: pathListRolesHelpSyn,
HelpDescription: pathListRolesHelpDesc,
}
}
func (b *backend) operationRoleExistenceCheck(ctx context.Context, req *logical.Request, data *framework.FieldData) (bool, error) {
entry, err := readRole(ctx, req.Storage, data.Get("role").(string))
if err != nil {
return false, err
}
return entry != nil, nil
}
func (b *backend) operationRoleCreate(ctx context.Context, req *logical.Request, data *framework.FieldData) (*logical.Response, error) {
roleName := ""
if r, ok := data.GetOk("role"); ok {
roleName = r.(string)
} else {
return nil, errors.New("missing role")
}
role, err := readRole(ctx, req.Storage, roleName)
if err != nil {
return nil, err
}
if role != nil {
return nil, fmt.Errorf("role(%s) is already exist", roleName)
}
if _, ok := data.GetOk("account"); !ok {
return nil, errors.New("the account is required to create a role")
}
if _, ok := data.GetOk("user"); !ok {
return nil, errors.New("the user is required to create a role")
}
role = &roleEntry{RoleName: roleName}
return b.createUpdate(role, ctx, req, data)
}
func (b *backend) operationRoleUpdate(ctx context.Context, req *logical.Request, data *framework.FieldData) (*logical.Response, error) {
roleName := ""
if r, ok := data.GetOk("role"); ok {
roleName = r.(string)
} else {
return nil, errors.New("missing role")
}
role, err := readRole(ctx, req.Storage, roleName)
if err != nil {
return nil, err
}
if role == nil {
return nil, fmt.Errorf("role(%s) is not found to update", roleName)
}
return b.createUpdate(role, ctx, req, data)
}
func (b *backend) createUpdate(role *roleEntry, ctx context.Context, req *logical.Request, data *framework.FieldData) (*logical.Response, error) {
if account, ok := data.GetOk("account"); ok {
role.Identity.Account = account.(string)
}
if user, ok := data.GetOk("user"); ok {
role.Identity.User = user.(string)
}
// Get tokenutil fields
if err := role.ParseTokenFields(req, data); err != nil {
return logical.ErrorResponse(err.Error()), logical.ErrInvalidRequest
}
if role.TokenMaxTTL > 0 && role.TokenTTL > role.TokenMaxTTL {
return nil, errors.New("ttl exceeds max ttl")
}
entry, err := logical.StorageEntryJSON("role/"+role.RoleName, role)
if err != nil {
return nil, err
}
if err := req.Storage.Put(ctx, entry); err != nil {
return nil, err
}
if role.TokenTTL > b.System().MaxLeaseTTL() {
resp := &logical.Response{}
resp.AddWarning(fmt.Sprintf("ttl(%d) exceeds the system max ttl(%d), the latter will be used during login",
role.TokenTTL, b.System().MaxLeaseTTL()))
return resp, nil
}
return nil, nil
}
func (b *backend) operationRoleRead(ctx context.Context, req *logical.Request, data *framework.FieldData) (*logical.Response, error) {
role, err := readRole(ctx, req.Storage, data.Get("role").(string))
if err != nil {
return nil, err
}
if role == nil {
return nil, nil
}
return &logical.Response{
Data: role.ToResponseData(),
}, nil
}
func (b *backend) operationRoleDelete(ctx context.Context, req *logical.Request, data *framework.FieldData) (*logical.Response, error) {
return nil, req.Storage.Delete(ctx, "role/"+data.Get("role").(string))
}
func (b *backend) operationRoleList(ctx context.Context, req *logical.Request, data *framework.FieldData) (*logical.Response, error) {
roleNames, err := req.Storage.List(ctx, "role/")
if err != nil {
return nil, err
}
return logical.ListResponse(roleNames), nil
}
func readRole(ctx context.Context, s logical.Storage, roleName string) (*roleEntry, error) {
role, err := s.Get(ctx, "role/"+roleName)
if err != nil {
return nil, err
}
if role == nil {
return nil, nil
}
result := &roleEntry{}
if err := role.DecodeJSON(result); err != nil {
return nil, err
}
return result, nil
}
const pathRoleSyn = `
Create a role and associate policies to it.
`
const pathRoleDesc = `
A precondition for login is that a role should be created in the backend.
The login endpoint takes in the role name against which the instance
should be validated. The authorization for the instance to access Vault's
resources is determined by the policies that are associated to the role
though this endpoint.
`
const pathListRolesHelpSyn = `
Lists all the roles that are registered to Vault.
`
const pathListRolesHelpDesc = `
Roles will be listed by their respective role names.
`