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0b12cdcfd1
* Adding explicit MPL license for sub-package. This directory and its subdirectories (packages) contain files licensed with the MPLv2 `LICENSE` file in this directory and are intentionally licensed separately from the BSL `LICENSE` file at the root of this repository. * Adding explicit MPL license for sub-package. This directory and its subdirectories (packages) contain files licensed with the MPLv2 `LICENSE` file in this directory and are intentionally licensed separately from the BSL `LICENSE` file at the root of this repository. * Updating the license from MPL to Business Source License. Going forward, this project will be licensed under the Business Source License v1.1. Please see our blog post for more details at https://hashi.co/bsl-blog, FAQ at www.hashicorp.com/licensing-faq, and details of the license at www.hashicorp.com/bsl. * add missing license headers * Update copyright file headers to BUS-1.1 * Fix test that expected exact offset on hcl file --------- Co-authored-by: hashicorp-copywrite[bot] <110428419+hashicorp-copywrite[bot]@users.noreply.github.com> Co-authored-by: Sarah Thompson <sthompson@hashicorp.com> Co-authored-by: Brian Kassouf <bkassouf@hashicorp.com>
87 lines
2.0 KiB
Go
87 lines
2.0 KiB
Go
// Copyright (c) HashiCorp, Inc.
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// SPDX-License-Identifier: BUSL-1.1
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package token_file
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import (
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"context"
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"errors"
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"fmt"
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"net/http"
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"os"
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"strings"
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"github.com/hashicorp/go-hclog"
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"github.com/hashicorp/vault/api"
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"github.com/hashicorp/vault/command/agentproxyshared/auth"
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)
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type tokenFileMethod struct {
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logger hclog.Logger
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mountPath string
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cachedToken string
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tokenFilePath string
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}
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func NewTokenFileAuthMethod(conf *auth.AuthConfig) (auth.AuthMethod, error) {
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if conf == nil {
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return nil, errors.New("empty config")
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}
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if conf.Config == nil {
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return nil, errors.New("empty config data")
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}
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a := &tokenFileMethod{
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logger: conf.Logger,
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mountPath: "auth/token",
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}
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tokenFilePathRaw, ok := conf.Config["token_file_path"]
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if !ok {
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return nil, errors.New("missing 'token_file_path' value")
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}
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a.tokenFilePath, ok = tokenFilePathRaw.(string)
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if !ok {
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return nil, errors.New("could not convert 'token_file_path' config value to string")
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}
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if a.tokenFilePath == "" {
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return nil, errors.New("'token_file_path' value is empty")
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}
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return a, nil
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}
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func (a *tokenFileMethod) Authenticate(ctx context.Context, client *api.Client) (string, http.Header, map[string]interface{}, error) {
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token, err := os.ReadFile(a.tokenFilePath)
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if err != nil {
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if a.cachedToken == "" {
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return "", nil, nil, fmt.Errorf("error reading token file and no cached token known: %w", err)
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}
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a.logger.Warn("error reading token file", "error", err)
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}
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if len(token) == 0 {
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if a.cachedToken == "" {
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return "", nil, nil, errors.New("token file empty and no cached token known")
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}
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a.logger.Warn("token file exists but read empty value, re-using cached value")
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} else {
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a.cachedToken = strings.TrimSpace(string(token))
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}
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// i.e. auth/token/lookup-self
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return fmt.Sprintf("%s/lookup-self", a.mountPath), nil, map[string]interface{}{
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"token": a.cachedToken,
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}, nil
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}
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func (a *tokenFileMethod) NewCreds() chan struct{} {
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return nil
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}
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func (a *tokenFileMethod) CredSuccess() {
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}
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func (a *tokenFileMethod) Shutdown() {
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}
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