dd0e8eec14
* copyright headers for agent folder * Ignore test data files * fix proto files and remove headers in agent/uiserver folder * ignore deep-copy files
95 lines
3.2 KiB
Go
95 lines
3.2 KiB
Go
// Copyright (c) HashiCorp, Inc.
|
|
// SPDX-License-Identifier: MPL-2.0
|
|
|
|
package ca
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
|
|
"github.com/hashicorp/vault/api"
|
|
|
|
"github.com/hashicorp/consul/agent/structs"
|
|
)
|
|
|
|
// VaultAuthenticator defines the interface for logging into Vault using an auth method.
|
|
type VaultAuthenticator interface {
|
|
// Login to Vault and return a Vault token.
|
|
Login(ctx context.Context, client *api.Client) (*api.Secret, error)
|
|
}
|
|
|
|
// LoginDataGenerator is used to generate the login data for a Vault login API request.
|
|
type LoginDataGeneratorFn func(authMethod *structs.VaultAuthMethod) (map[string]any, error)
|
|
|
|
var _ VaultAuthenticator = (*VaultAuthClient)(nil)
|
|
|
|
// VaultAuthClient is a VaultAuthenticator that logs into Vault through the /auth/<method>/login API.
|
|
type VaultAuthClient struct {
|
|
// AuthMethod holds the configuration for the Vault auth method login.
|
|
AuthMethod *structs.VaultAuthMethod
|
|
// LoginPath is optional and can be used to explicitly set the API path that the client
|
|
// will use for a login request. If it is empty the path will be derived from AuthMethod.MountPath.
|
|
LoginPath string
|
|
// LoginDataGen derives the parameter map containing the data for the login API request.
|
|
// For some auth methods this is needed to transform the AuthMethod.Params into the login data
|
|
// used for the API request.
|
|
LoginDataGen LoginDataGeneratorFn
|
|
}
|
|
|
|
// NewVaultAPIAuthClient creates a VaultAuthClient that uses the Vault API to perform a login.
|
|
func NewVaultAPIAuthClient(authMethod *structs.VaultAuthMethod, loginPath string) *VaultAuthClient {
|
|
if loginPath == "" {
|
|
loginPath = fmt.Sprintf("auth/%s/login", authMethod.MountPath)
|
|
}
|
|
return &VaultAuthClient{
|
|
AuthMethod: authMethod,
|
|
LoginPath: loginPath,
|
|
}
|
|
}
|
|
|
|
// Login performs a Vault login operation and returns the associated Vault token.
|
|
func (c *VaultAuthClient) Login(ctx context.Context, client *api.Client) (*api.Secret, error) {
|
|
var err error
|
|
loginData := c.AuthMethod.Params
|
|
|
|
// If a login data generator is provided then use it to transform the auth method params
|
|
// into the appropriate login data for the API request.
|
|
if c.LoginDataGen != nil {
|
|
loginData, err = c.LoginDataGen(c.AuthMethod)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("aws auth failed to generate login data: %w", err)
|
|
}
|
|
}
|
|
|
|
if ctx == nil {
|
|
ctx = context.Background()
|
|
}
|
|
return client.Logical().WriteWithContext(ctx, c.LoginPath, loginData)
|
|
}
|
|
|
|
func toMapStringString(in map[string]interface{}) (map[string]string, error) {
|
|
out := make(map[string]string, len(in))
|
|
for k, v := range in {
|
|
if s, ok := v.(string); ok {
|
|
out[k] = s
|
|
} else {
|
|
return nil, fmt.Errorf("invalid type for field %s: expected a string but got %T", k, v)
|
|
}
|
|
}
|
|
return out, nil
|
|
}
|
|
|
|
// legacyCheck is used to see if all the parameters needed to /login have been
|
|
// hardcoded in the auth-method's config Parameters field.
|
|
// Note it returns true if any /login specific fields are found (vs. all). This
|
|
// is because the AWS client has multiple possible ways to call /login with
|
|
// different parameters.
|
|
func legacyCheck(params map[string]any, expectedKeys ...string) bool {
|
|
for _, key := range expectedKeys {
|
|
if v, ok := params[key]; ok && v != "" {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|