open-vault/builtin/logical/database/path_creds_create.go
2017-06-06 09:49:49 -04:00

113 lines
2.8 KiB
Go

package database
import (
"fmt"
"time"
"github.com/hashicorp/vault/builtin/logical/database/dbplugin"
"github.com/hashicorp/vault/helper/strutil"
"github.com/hashicorp/vault/logical"
"github.com/hashicorp/vault/logical/framework"
)
func pathCredsCreate(b *databaseBackend) *framework.Path {
return &framework.Path{
Pattern: "creds/" + framework.GenericNameRegex("name"),
Fields: map[string]*framework.FieldSchema{
"name": &framework.FieldSchema{
Type: framework.TypeString,
Description: "Name of the role.",
},
},
Callbacks: map[logical.Operation]framework.OperationFunc{
logical.ReadOperation: b.pathCredsCreateRead(),
},
HelpSynopsis: pathCredsCreateReadHelpSyn,
HelpDescription: pathCredsCreateReadHelpDesc,
}
}
func (b *databaseBackend) pathCredsCreateRead() framework.OperationFunc {
return func(req *logical.Request, data *framework.FieldData) (*logical.Response, error) {
name := data.Get("name").(string)
// Get the role
role, err := b.Role(req.Storage, name)
if err != nil {
return nil, err
}
if role == nil {
return logical.ErrorResponse(fmt.Sprintf("unknown role: %s", name)), nil
}
dbConfig, err := b.DatabaseConfig(req.Storage, role.DBName)
if err != nil {
return nil, err
}
// If role name isn't in the database's allowed roles, send back a
// permission denied.
if !strutil.StrListContains(dbConfig.AllowedRoles, "*") && !strutil.StrListContains(dbConfig.AllowedRoles, name) {
return nil, logical.ErrPermissionDenied
}
// Grab the read lock
b.RLock()
var unlockFunc func() = b.RUnlock
// Get the Database object
db, ok := b.getDBObj(role.DBName)
if !ok {
// Upgrade lock
b.RUnlock()
b.Lock()
unlockFunc = b.Unlock
// Create a new DB object
db, err = b.createDBObj(req.Storage, role.DBName)
if err != nil {
unlockFunc()
return nil, fmt.Errorf("cound not retrieve db with name: %s, got error: %s", role.DBName, err)
}
}
expiration := time.Now().Add(role.DefaultTTL)
usernameConfig := dbplugin.UsernameConfig{
DisplayName: req.DisplayName,
RoleName: name,
}
// Create the user
username, password, err := db.CreateUser(role.Statements, usernameConfig, expiration)
// Unlock
unlockFunc()
if err != nil {
b.closeIfShutdown(role.DBName, err)
return nil, err
}
resp := b.Secret(SecretCredsType).Response(map[string]interface{}{
"username": username,
"password": password,
}, map[string]interface{}{
"username": username,
"role": name,
})
resp.Secret.TTL = role.DefaultTTL
return resp, nil
}
}
const pathCredsCreateReadHelpSyn = `
Request database credentials for a certain role.
`
const pathCredsCreateReadHelpDesc = `
This path reads database credentials for a certain role. The
database credentials will be generated on demand and will be automatically
revoked when the lease is up.
`