open-consul/agent/connect/ca/provider_vault_auth_approle.go
Ronald dd0e8eec14
copyright headers for agent folder (#16704)
* copyright headers for agent folder

* Ignore test data files

* fix proto files and remove headers in agent/uiserver folder

* ignore deep-copy files
2023-03-28 14:39:22 -04:00

70 lines
2.1 KiB
Go

// Copyright (c) HashiCorp, Inc.
// SPDX-License-Identifier: MPL-2.0
package ca
import (
"bytes"
"fmt"
"os"
"strings"
"github.com/hashicorp/consul/agent/structs"
)
// left out 2 config options as we are re-using vault agent's auth config.
// Why?
// remove_secret_id_file_after_reading - don't remove what we don't own
// secret_id_response_wrapping_path - wrapping the secret before writing to disk
// (which we don't need to do)
func NewAppRoleAuthClient(authMethod *structs.VaultAuthMethod) (*VaultAuthClient, error) {
authClient := NewVaultAPIAuthClient(authMethod, "")
// check for hardcoded /login params
if legacyCheck(authMethod.Params, "role_id", "secret_id") {
return authClient, nil
}
// check for required config params
key := "role_id_file_path"
if val, ok := authMethod.Params[key].(string); !ok {
return nil, fmt.Errorf("missing '%s' value", key)
} else if strings.TrimSpace(val) == "" {
return nil, fmt.Errorf("'%s' value is empty", key)
}
authClient.LoginDataGen = ArLoginDataGen
return authClient, nil
}
func ArLoginDataGen(authMethod *structs.VaultAuthMethod) (map[string]any, error) {
// don't need to check for legacy params as this func isn't used in that case
params := authMethod.Params
// role_id is required
roleIdFilePath := params["role_id_file_path"].(string)
// secret_id is optional (secret_ok is used in check below)
// secretIdFilePath, secret_ok := params["secret_id_file_path"].(string)
secretIdFilePath, hasSecret := params["secret_id_file_path"].(string)
if hasSecret && strings.TrimSpace(secretIdFilePath) == "" {
hasSecret = false
}
var err error
var rawRoleID, rawSecretID []byte
data := make(map[string]any)
if rawRoleID, err = os.ReadFile(roleIdFilePath); err != nil {
return nil, err
}
data["role_id"] = string(rawRoleID)
if hasSecret {
switch rawSecretID, err = os.ReadFile(secretIdFilePath); {
case err != nil:
return nil, err
case len(bytes.TrimSpace(rawSecretID)) > 0:
data["secret_id"] = strings.TrimSpace(string(rawSecretID))
}
}
return data, nil
}