111 lines
3.1 KiB
Go
111 lines
3.1 KiB
Go
package database
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import (
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"context"
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"fmt"
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"time"
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"github.com/hashicorp/vault/sdk/database/dbplugin"
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"github.com/hashicorp/vault/sdk/framework"
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"github.com/hashicorp/vault/sdk/helper/strutil"
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"github.com/hashicorp/vault/sdk/logical"
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)
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func pathCredsCreate(b *databaseBackend) *framework.Path {
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return &framework.Path{
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Pattern: "creds/" + framework.GenericNameRegex("name"),
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Fields: map[string]*framework.FieldSchema{
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"name": &framework.FieldSchema{
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Type: framework.TypeString,
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Description: "Name of the role.",
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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.pathCredsCreateRead(),
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},
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HelpSynopsis: pathCredsCreateReadHelpSyn,
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HelpDescription: pathCredsCreateReadHelpDesc,
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}
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}
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func (b *databaseBackend) pathCredsCreateRead() framework.OperationFunc {
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return func(ctx context.Context, req *logical.Request, data *framework.FieldData) (*logical.Response, error) {
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name := data.Get("name").(string)
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// Get the role
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role, err := b.Role(ctx, req.Storage, name)
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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 logical.ErrorResponse(fmt.Sprintf("unknown role: %s", name)), nil
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}
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dbConfig, err := b.DatabaseConfig(ctx, req.Storage, role.DBName)
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if err != nil {
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return nil, err
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}
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// If role name isn't in the database's allowed roles, send back a
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// permission denied.
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if !strutil.StrListContains(dbConfig.AllowedRoles, "*") && !strutil.StrListContainsGlob(dbConfig.AllowedRoles, name) {
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return nil, fmt.Errorf("%q is not an allowed role", name)
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}
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// Get the Database object
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db, err := b.GetConnection(ctx, req.Storage, role.DBName)
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if err != nil {
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return nil, err
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}
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db.RLock()
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defer db.RUnlock()
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ttl, _, err := framework.CalculateTTL(b.System(), 0, role.DefaultTTL, 0, role.MaxTTL, 0, time.Time{})
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if err != nil {
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return nil, err
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}
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expiration := time.Now().Add(ttl)
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// Adding a small buffer since the TTL will be calculated again after this call
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// to ensure the database credential does not expire before the lease
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expiration = expiration.Add(5 * time.Second)
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usernameConfig := dbplugin.UsernameConfig{
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DisplayName: req.DisplayName,
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RoleName: name,
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}
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// Create the user
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username, password, err := db.CreateUser(ctx, role.Statements, usernameConfig, expiration)
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if err != nil {
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b.CloseIfShutdown(db, err)
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return nil, err
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}
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resp := b.Secret(SecretCredsType).Response(map[string]interface{}{
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"username": username,
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"password": password,
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}, map[string]interface{}{
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"username": username,
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"role": name,
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"db_name": role.DBName,
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"revocation_statements": role.Statements.Revocation,
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})
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resp.Secret.TTL = role.DefaultTTL
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resp.Secret.MaxTTL = role.MaxTTL
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return resp, nil
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}
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}
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const pathCredsCreateReadHelpSyn = `
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Request database credentials for a certain role.
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`
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const pathCredsCreateReadHelpDesc = `
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This path reads database credentials for a certain role. The
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database credentials will be generated on demand and will be automatically
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revoked when the lease is up.
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`
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