95 lines
2.2 KiB
Go
95 lines
2.2 KiB
Go
package mysql
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import (
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"fmt"
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"time"
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"github.com/hashicorp/vault/logical"
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"github.com/hashicorp/vault/logical/framework"
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)
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const SecretCredsType = "creds"
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func secretCreds(b *backend) *framework.Secret {
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return &framework.Secret{
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Type: SecretCredsType,
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Fields: map[string]*framework.FieldSchema{
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"username": &framework.FieldSchema{
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Type: framework.TypeString,
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Description: "Username",
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},
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"password": &framework.FieldSchema{
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Type: framework.TypeString,
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Description: "Password",
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},
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},
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DefaultDuration: 1 * time.Hour,
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DefaultGracePeriod: 10 * time.Minute,
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Renew: b.secretCredsRenew,
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Revoke: b.secretCredsRevoke,
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}
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}
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func (b *backend) secretCredsRenew(
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req *logical.Request, d *framework.FieldData) (*logical.Response, error) {
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// Get the lease information
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lease, err := b.Lease(req.Storage)
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if err != nil {
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return nil, err
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}
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if lease == nil {
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lease = &configLease{Lease: 1 * time.Hour}
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}
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f := framework.LeaseExtend(lease.Lease, lease.LeaseMax, false)
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return f(req, d)
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}
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func (b *backend) secretCredsRevoke(
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req *logical.Request, d *framework.FieldData) (*logical.Response, error) {
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// Get the username from the internal data
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usernameRaw, ok := req.Secret.InternalData["username"]
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if !ok {
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return nil, fmt.Errorf("secret is missing username internal data")
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}
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username, ok := usernameRaw.(string)
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// Get our connection
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db, err := b.DB(req.Storage)
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if err != nil {
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return nil, err
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}
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// Start a transaction
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tx, err := db.Begin()
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if err != nil {
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return nil, err
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}
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defer tx.Rollback()
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// Revoke all permissions for the user. This is done before the
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// drop, because MySQL explicitly documents that open user connections
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// will not be closed. By revoking all grants, at least we ensure
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// that the open connection is useless.
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_, err = tx.Exec("REVOKE ALL PRIVILEGES, GRANT OPTION FROM '" + username + "'@'%'")
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if err != nil {
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return nil, err
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}
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// Drop this user. This only affects the next connection, which is
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// why we do the revoke initially.
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_, err = tx.Exec("DROP USER '" + username + "'@'%'")
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if err != nil {
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return nil, err
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}
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// Commit the transaction
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if err := tx.Commit(); 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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