96 lines
2.5 KiB
Go
96 lines
2.5 KiB
Go
package cassandra
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import (
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"crypto/tls"
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"fmt"
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"strings"
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"time"
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"github.com/gocql/gocql"
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"github.com/hashicorp/vault/helper/certutil"
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"github.com/hashicorp/vault/helper/tlsutil"
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"github.com/hashicorp/vault/logical"
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)
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// Query templates a query for us.
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func substQuery(tpl string, data map[string]string) string {
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for k, v := range data {
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tpl = strings.Replace(tpl, fmt.Sprintf("{{%s}}", k), v, -1)
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}
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return tpl
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}
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func createSession(cfg *sessionConfig, s logical.Storage) (*gocql.Session, error) {
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clusterConfig := gocql.NewCluster(strings.Split(cfg.Hosts, ",")...)
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clusterConfig.Authenticator = gocql.PasswordAuthenticator{
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Username: cfg.Username,
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Password: cfg.Password,
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}
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clusterConfig.ProtoVersion = cfg.ProtocolVersion
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if clusterConfig.ProtoVersion == 0 {
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clusterConfig.ProtoVersion = 2
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}
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clusterConfig.Timeout = time.Duration(cfg.ConnectTimeout) * time.Second
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if cfg.TLS {
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var tlsConfig *tls.Config
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if len(cfg.Certificate) > 0 || len(cfg.IssuingCA) > 0 {
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if len(cfg.Certificate) > 0 && len(cfg.PrivateKey) == 0 {
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return nil, fmt.Errorf("Found certificate for TLS authentication but no private key")
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}
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certBundle := &certutil.CertBundle{}
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if len(cfg.Certificate) > 0 {
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certBundle.Certificate = cfg.Certificate
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certBundle.PrivateKey = cfg.PrivateKey
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}
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if len(cfg.IssuingCA) > 0 {
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certBundle.IssuingCA = cfg.IssuingCA
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}
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parsedCertBundle, err := certBundle.ToParsedCertBundle()
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if err != nil {
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return nil, fmt.Errorf("failed to parse certificate bundle: %s", err)
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}
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tlsConfig, err = parsedCertBundle.GetTLSConfig(certutil.TLSClient)
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if err != nil || tlsConfig == nil {
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return nil, fmt.Errorf("failed to get TLS configuration: tlsConfig:%#v err:%v", tlsConfig, err)
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}
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tlsConfig.InsecureSkipVerify = cfg.InsecureTLS
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if cfg.TLSMinVersion != "" {
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var ok bool
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tlsConfig.MinVersion, ok = tlsutil.TLSLookup[cfg.TLSMinVersion]
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if !ok {
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return nil, fmt.Errorf("invalid 'tls_min_version' in config")
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}
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} else {
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// MinVersion was not being set earlier. Reset it to
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// zero to gracefully handle upgrades.
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tlsConfig.MinVersion = 0
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}
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}
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clusterConfig.SslOpts = &gocql.SslOptions{
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Config: tlsConfig,
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}
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}
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session, err := clusterConfig.CreateSession()
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if err != nil {
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return nil, fmt.Errorf("Error creating session: %s", err)
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}
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// Verify the info
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err = session.Query(`LIST USERS`).Exec()
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if err != nil {
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return nil, fmt.Errorf("Error validating connection info: %s", err)
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}
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return session, nil
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}
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