/
backend.go
135 lines (108 loc) · 3.17 KB
/
backend.go
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package onepassword
import (
"context"
"fmt"
"os"
"strings"
"time"
"github.com/1Password/connect-sdk-go/connect"
"github.com/1Password/vault-plugin-secrets-onepassword/version"
"github.com/hashicorp/errwrap"
"github.com/hashicorp/vault/sdk/framework"
"github.com/hashicorp/vault/sdk/logical"
"github.com/patrickmn/go-cache"
)
const (
envDefaultVaultVar = "OP_VAULT"
clientCache = "client"
defaultVaultCache = "vault"
cacheCleanup = 30 * time.Minute
cacheExpiration = 30 * time.Minute
)
const (
vaultUserAgent = "vault-connect/%s"
)
// Factory returns a new backend as logical.Backend.
func Factory(ctx context.Context, conf *logical.BackendConfig) (logical.Backend, error) {
b := Backend()
if err := b.Setup(ctx, conf); err != nil {
return nil, err
}
return b, nil
}
func Backend() *backend {
var b = &backend{
store: make(map[string][]byte),
configCache: cache.New(cacheExpiration, cacheCleanup),
}
b.Backend = &framework.Backend{
BackendType: logical.TypeLogical,
Help: strings.TrimSpace(opHelp),
PathsSpecial: &logical.Paths{
SealWrapStorage: []string{
"config",
},
},
Paths: framework.PathAppend(
pathConfig(b),
pathItems(b),
pathVaults(b),
),
Secrets: []*framework.Secret{},
}
return b
}
type backend struct {
*framework.Backend
store map[string][]byte
configCache *cache.Cache
}
func (b *backend) OnePasswordConnectClient(s logical.Storage) (connect.Client, error) {
vaultUserAgent := fmt.Sprintf(vaultUserAgent, version.Version)
cachedClient, found := b.configCache.Get(clientCache)
if found {
b.Logger().Debug("Using cached client")
return cachedClient.(connect.Client), nil
}
b.Logger().Debug("Creating new client")
config, err := getConfig(context.Background(), s)
if err != nil {
return nil, errwrap.Wrapf("Error retrieving config for client: {{err}}", err)
}
if config == nil {
return nil, fmt.Errorf("No config set for op backend.")
}
client := connect.NewClientWithUserAgent(config.Host, config.OPToken, vaultUserAgent)
b.configCache.Set(clientCache, client, -1)
return client, nil
}
func (b *backend) getVault(s logical.Storage, vaultParam string) (string, error) {
defaultVault, envVaultFound := os.LookupEnv(envDefaultVaultVar)
if vaultParam != "" {
return vaultParam, nil
}
if envVaultFound {
return defaultVault, nil
}
cachedDefaultVault, found := b.configCache.Get(defaultVaultCache)
if found {
b.Logger().Debug("Using cached default vault")
return cachedDefaultVault.(string), nil
}
config, err := getConfig(context.Background(), s)
if err == nil && config != nil && config.OPVault != "" {
b.configCache.Set(defaultVaultCache, config.OPVault, -1)
return config.OPVault, nil
}
return "", fmt.Errorf("No vault has been specified")
}
func (b *backend) handleExistenceCheck(ctx context.Context, req *logical.Request, data *framework.FieldData) (bool, error) {
out, err := req.Storage.Get(ctx, req.Path)
if err != nil {
return false, errwrap.Wrapf("existence check failed: {{err}}", err)
}
return out != nil, nil
}
const opHelp = `
The op-connect plugin is a secrets backend that allows for the retrieval of items from 1Password using 1Password Connect.
`