140 lines
3.5 KiB
Go
140 lines
3.5 KiB
Go
package database
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import (
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"context"
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"fmt"
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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 *databaseBackend) *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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Renew: b.secretCredsRenew(),
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Revoke: b.secretCredsRevoke(),
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}
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}
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func (b *databaseBackend) secretCredsRenew() framework.OperationFunc {
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return func(ctx context.Context, req *logical.Request, data *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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roleNameRaw, ok := req.Secret.InternalData["role"]
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if !ok {
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return nil, fmt.Errorf("could not find role with name: %s", req.Secret.InternalData["role"])
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}
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role, err := b.Role(ctx, req.Storage, roleNameRaw.(string))
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if err != nil {
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return nil, err
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}
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if role == nil {
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return nil, fmt.Errorf("error during renew: could not find role with name %s", req.Secret.InternalData["role"])
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}
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f := framework.LeaseExtend(role.DefaultTTL, role.MaxTTL, b.System())
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resp, err := f(ctx, req, data)
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if err != nil {
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return nil, err
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}
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// Grab the read lock
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b.RLock()
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unlockFunc := b.RUnlock
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// Get the Database object
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db, ok := b.getDBObj(role.DBName)
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if !ok {
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// Upgrade lock
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b.RUnlock()
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b.Lock()
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unlockFunc = b.Unlock
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// Create a new DB object
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db, err = b.createDBObj(ctx, req.Storage, role.DBName)
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if err != nil {
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unlockFunc()
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return nil, fmt.Errorf("could not retrieve db with name: %s, got error: %s", role.DBName, err)
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}
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}
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// Make sure we increase the VALID UNTIL endpoint for this user.
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if expireTime := resp.Secret.ExpirationTime(); !expireTime.IsZero() {
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err := db.RenewUser(ctx, role.Statements, username, expireTime)
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if err != nil {
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unlockFunc()
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b.closeIfShutdown(role.DBName, err)
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return nil, err
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}
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}
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unlockFunc()
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return resp, nil
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}
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}
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func (b *databaseBackend) secretCredsRevoke() framework.OperationFunc {
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return func(ctx context.Context, req *logical.Request, data *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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var resp *logical.Response
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roleNameRaw, ok := req.Secret.InternalData["role"]
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if !ok {
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return nil, fmt.Errorf("no role name was provided")
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}
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role, err := b.Role(ctx, req.Storage, roleNameRaw.(string))
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if err != nil {
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return nil, err
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}
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if role == nil {
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return nil, fmt.Errorf("error during revoke: could not find role with name %s", req.Secret.InternalData["role"])
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}
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// Grab the read lock
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b.RLock()
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unlockFunc := b.RUnlock
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// Get our connection
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db, ok := b.getDBObj(role.DBName)
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if !ok {
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// Upgrade lock
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b.RUnlock()
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b.Lock()
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unlockFunc = b.Unlock
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// Create a new DB object
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db, err = b.createDBObj(ctx, req.Storage, role.DBName)
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if err != nil {
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unlockFunc()
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return nil, fmt.Errorf("could not retrieve db with name: %s, got error: %s", role.DBName, err)
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}
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}
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if err := db.RevokeUser(ctx, role.Statements, username); err != nil {
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unlockFunc()
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b.closeIfShutdown(role.DBName, err)
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return nil, err
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}
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unlockFunc()
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return resp, nil
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}
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}
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