127 lines
3.5 KiB
Go
127 lines
3.5 KiB
Go
package consul
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import (
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"context"
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"fmt"
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"github.com/hashicorp/errwrap"
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"github.com/hashicorp/vault/sdk/framework"
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"github.com/hashicorp/vault/sdk/logical"
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)
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func pathConfigAccess(b *backend) *framework.Path {
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return &framework.Path{
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Pattern: "config/access",
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Fields: map[string]*framework.FieldSchema{
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"address": {
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Type: framework.TypeString,
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Description: "Consul server address",
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},
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"scheme": {
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Type: framework.TypeString,
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Description: "URI scheme for the Consul address",
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// https would be a better default but Consul on its own
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// defaults to HTTP access, and when HTTPS is enabled it
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// disables HTTP, so there isn't really any harm done here.
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Default: "http",
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},
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"token": {
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Type: framework.TypeString,
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Description: "Token for API calls",
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},
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"ca_cert": {
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Type: framework.TypeString,
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Description: `CA certificate to use when verifying Consul server certificate,
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must be x509 PEM encoded.`,
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},
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"client_cert": {
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Type: framework.TypeString,
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Description: `Client certificate used for Consul's TLS communication,
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must be x509 PEM encoded and if this is set you need to also set client_key.`,
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},
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"client_key": {
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Type: framework.TypeString,
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Description: `Client key used for Consul's TLS communication,
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must be x509 PEM encoded and if this is set you need to also set client_cert.`,
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},
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},
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Callbacks: map[logical.Operation]framework.OperationFunc{
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logical.ReadOperation: b.pathConfigAccessRead,
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logical.UpdateOperation: b.pathConfigAccessWrite,
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},
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}
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}
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func (b *backend) readConfigAccess(ctx context.Context, storage logical.Storage) (*accessConfig, error, error) {
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entry, err := storage.Get(ctx, "config/access")
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if err != nil {
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return nil, nil, err
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}
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if entry == nil {
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return nil, fmt.Errorf("access credentials for the backend itself haven't been configured; please configure them at the '/config/access' endpoint"), nil
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}
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conf := &accessConfig{}
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if err := entry.DecodeJSON(conf); err != nil {
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return nil, nil, errwrap.Wrapf("error reading consul access configuration: {{err}}", err)
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}
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return conf, nil, nil
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}
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func (b *backend) pathConfigAccessRead(ctx context.Context, req *logical.Request, data *framework.FieldData) (*logical.Response, error) {
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conf, userErr, intErr := b.readConfigAccess(ctx, req.Storage)
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if intErr != nil {
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return nil, intErr
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}
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if userErr != nil {
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return logical.ErrorResponse(userErr.Error()), nil
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}
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if conf == nil {
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return nil, fmt.Errorf("no user error reported but consul access configuration not found")
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}
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return &logical.Response{
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Data: map[string]interface{}{
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"address": conf.Address,
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"scheme": conf.Scheme,
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},
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}, nil
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}
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func (b *backend) pathConfigAccessWrite(ctx context.Context, req *logical.Request, data *framework.FieldData) (*logical.Response, error) {
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entry, err := logical.StorageEntryJSON("config/access", accessConfig{
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Address: data.Get("address").(string),
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Scheme: data.Get("scheme").(string),
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Token: data.Get("token").(string),
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CACert: data.Get("ca_cert").(string),
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ClientCert: data.Get("client_cert").(string),
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ClientKey: data.Get("client_key").(string),
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})
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if err != nil {
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return nil, err
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}
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if err := req.Storage.Put(ctx, entry); err != nil {
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return nil, err
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}
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return nil, nil
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}
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type accessConfig struct {
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Address string `json:"address"`
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Scheme string `json:"scheme"`
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Token string `json:"token"`
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CACert string `json:"ca_cert"`
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ClientCert string `json:"client_cert"`
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ClientKey string `json:"client_key"`
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}
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